Awesome Linux Software

Tux

🐧 This repo is a collection of AWESOME Linux applications and tools for any users/developers.

🐧 Feel free to contribute / star / fork / pull request . Any recommendations and suggestions are welcome.

Acknowledgement: Everything written below is from my own experience in college and after reading various materials. I am neither a professional nor an expert, but a passionate user. Anyone can open a discussion in the issue section, or a pull request if something should be modified or added.

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Applications
Command Line Utilities
Custom Linux Kernels
Desktop Environments
Display manager
- Console
- Graphic
Window Managers
Linux News, Apps, and more:
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Contributors
Guidelines to contribute
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License

Applications

3D Printing

Cura - The worlds most advanced 3D printer software
FreeCAD - An open source parametric 3D CAD modeler

Audio

For a more comprehensive/advanced/better categorized/… list of Linux audio software, you may want to click here

Edit-Mix-Record

Ardour - Record, Edit, and Mix on Linux.
Audacity - Free, open source, cross-platform software for recording and editing sounds.
Audio Recorder - Simple audio recorder available in an Ubuntu PPA.
Bitwig - DAW for music production.
EasyEffects - EasyEffects is an advanced audio manipulation tool. It includes an equalizer, limiter, compressor and a reverberation tool, just to mention a few. To complement this there is also a built in spectrum analyzer.
Helm - A software synthesizer, that runs either standalone, or as an LV2, VST, VST3 or AU plugin.
Hydrogen - Advanced drum machine for GNU/Linux.
KxStudio - A collection of applications and plugins for professional audio production.
LMMS - Making music on your PC by creating melodies and beats, synthesizing and mixing sounds, arranging samples and much more.
Mixxx - Free DJ software that gives you everything you need to perform live mixes; veritable alternative to Traktor.
MuseScore - Create, play and print beautiful sheet music.
Reaper - Audio Production without Limits.
VCV Rack - An open-source virtual modular synthesizer.
Viper4Linux - An audio effect processor based on Viper4Android.

Music Player

Amberol - A small and simple sound and music player that is well integrated with GNOME.
Audacious - An open source audio player that plays your music how you want it, without stealing away your computer’s resources from other tasks.
AudioTube - Feature-rich YouTube Music client for KDE, built with Kirigami.
beets - Beets is the media library management system for obsessive-compulsive music geeks.
Cantata - Qt5 Graphical MPD (Music Player Daemon) Client for Linux, Windows, MacOS.
Cider - A new cross-platform Apple Music experience based on Electron and Vue.js written from scratch with performance in mind.
Clementine - Play numerous lossy and lossless audio formats.
Cmus - A small, fast and powerful console music player for Unix-like operating systems.
DeaDBeeF - DeaDBeeF is a modular audio player for GNU/Linux, BSD, OpenSolaris, macOS, and other UNIX-like systems.
Deepin Music - An application, developed by Deepin Technology Team, which focused on local music playing.
Elisa - Elisa is a music player developed by the KDE community that strives to be simple and nice to use.
G4Music - A fast, fluent, light weight music player written in GTK4.
Gpodder - Media aggregator and podcast client.
Harmonoid - Plays & manages your music library. Looks beautiful & juicy. Playlists, visuals, synced lyrics, pitch shift, volume boost & more.
ieaseMusic - iEaseMusic is a multiplatform program built in electron for listening to NetEase Music.
JuK - Jukebox music player for managing audio and editing metadata.
Libretime - The open broadcast software for scheduling and remote station management; forked from Airtime.
Lollypop - A GNOME music playing application.
Mellow Player - Cloud music integration for your desktop.
Monophony - Linux app for streaming music from YouTube.
Moosync - Customizable Desktop Music Player with a clean interface for streaming local music as well as music from online sources such as YouTube and Spotify,.
Mopidy - An extensible music server written in Python.
muffon - muffon is a cross-platform music streaming browser for desktop, which helps you find, listen and organize music in a way you’ve probably never experienced before.
Museeks - A simple, clean and cross-platform music player.
MusicBrainz Picard - Picard is a cross-platform music tagger written in Python.
Netease Music - A music player of Netease - a cloud music service in China.
Nuclear - An Electron-based, multiplatform music player app that streams from multiple sources.
Ocenaudio - A cross-platform, easy to use, fast and functional audio editor. It is the ideal software for people who need to edit and analyze audio files.
Parlatype - GNOME audio player for transcription.
Pithos - A native Pandora client for Linux.
Quod Libet - GTK+ music player written with huge libraries in mind. Supports search-based dynamic playlists, regular expressions, tagging, Replay Gain, podcasts & Internet radio.
Rhythmbox - Music player from GNOME.
Sayonara Player - A small, clear and fast audio player for Linux written in C++, supported by the Qt framework.
Sonata - A Music player that is designed to be an elegant and intuitive interface for your music collection via the Music Player Daemon (MPD).
Soundnode - An open source SoundCloud app for desktop.
Spot - Native Spotify client for the GNOME desktop.
Spotify - Spotify is the best way to listen to music and podcasts on pc, mobile or tablet.
Spotube - Spotube is a Flutter based lightweight spotify client. It utilizes the power of Spotify & Youtube’s public API & creates a hazardless, performant & resource friendly User Experience.
Strawberry - Strawberry is a fork of Clementine aimed at music collectors and audiophiles. It’s written in C++ using the Qt toolkit.
Tidal-hifi - The web version of Tidal running in electron with hifi support thanks to widevine.
Youtube-Music - YouTube Music Desktop App bundled with custom plugins (and built-in ad blocker / downloader)

Radio

curseradio - Command line radio player.
Kasts - Feature-rich, convergent podcast client for Linux Desktop and Mobile.
RadioTray-NG - An Internet radio player for Linux.
Shortwave - Shortwave is an internet radio player that provides access to a station database with over 25,000 stations.
Vocal - Podcast client for the modern desktop.

Utilities

cava - Cava is a Cross-platform Audio Visualizer.
Ear Tag - Small and simple audio file tag editor.
EasyTag - Edit audio file metadata.
fre:ac - fre:ac is a free audio converter and CD ripper with support for various popular formats and encoders. It currently converts between MP3, MP4/M4A, WMA, Ogg Vorbis, FLAC, AAC, WAV and Bonk formats.
K3b - The CD/DVD Kreator for Linux, optimized for KDE.
Kid3 - Edit tags of multiple files, e.g. the artist, album, year and genre of all mp3 files of an album.
linuxwave - Generate music from the entropy of Linux
Mousai - Mousai is a simple application that can identify songs similar to Shazam.
MusixMatch - A Capable lyrics app with synchronized lyrics function.
OSD Lyrics - Show lyrics with your favorite media player.
Soundconverter - Leading audio file converter. Aims to be simple to use, and very fast.
SoundJuicer - CD Ripping tool for GNOME.
Soundux - A cross-platform soundboard.
Spicetify - Command-line tool to customize the official Spotify client. Supports Windows, MacOS and Linux.

Chat Clients

3rd Party Client

Caprine - Elegant Facebook Messenger desktop app.
Chatterino - Chatterino is a chat client for Twitch chat. It aims to be an improved/extended version of the Twitch web chat.
Chatty - Chatty is a Twitch chat client for everyone who wants to try something new and different from the webchat, but doesn’t want the complexity of an IRC client or miss out on the Twitch specific features.
Fractal - Fractal is a Matrix messaging app for GNOME written in Rust. Its interface is optimized for collaboration in large groups, such as free software projects.
NeoChat - NeoChat is a Matrix client. It allows you to send text messages, videos and audio files to your family, colleagues and friends using the Matrix protocol.
nheko - Desktop client for Matrix using Qt and C++20.
Tokodon - Tokodon is a Mastodon client for Plasma and Plasma Mobile.
WebCord - A Discord and Fosscord web-based client made with the electron.
WhatsDesk - WhatsDesk is a unofficial client of WhatsApp.

All-in-One Client

Ferdium - Fork of Ferdi/Franz. Ferdium is a desktop app that helps you organize how you use your favourite apps by combining them into one application.
Franz - Franz is a free messaging app that combines many chat & messaging services into one application.
Pidgin - A universal chat client.
Rambox - Free and Cross Platform messaging and emailing app that combines common web applications into one.
Tangram - Tangram is a new kind of browser. It is designed to organize and run your Web applications.

Chat Client Utilities

BetterDiscord - BetterDiscord extends the functionality of DiscordApp by enhancing it with new features.
Discover - Yet another Discord overlay for Linux written in Python using GTK3.
JMusicBot - A Discord music bot that’s easy to set up and run yourself.
Red Discord Bot - Red Discord Bot is a self-hosted music/chat/trivia bot that can run on a Raspberry Pi and a variety of OS’s. It’s extensible through a system of “Cogs” that allow it to do more.
Vencord - The cutest Discord client mod.

IRC Client

HexChat - HexChat is an IRC client based on XChat, but unlike XChat it’s completely free for both Windows and Unix-like system.
Irssi - Irssi is a modular chat client that is most commonly known for its text mode user interface.
Konversation - User-friendly and fully-featured IRC client.
KVIrc - KVIrc is a free portable IRC client based on the excellent Qt GUI toolkit.
Polari - A simple IRC client that is designed to integrate seamlessly with GNOME.
Weechat - WeeChat is a fast, light and extensible chat client.

Official Client

BeeBEEP - BeeBEEP is an open source, peer to peer, lan messenger. You can talk and share files with anyone inside your local area network. You don’t need a server, just download, unzip and start it. Simple, fast and secure.
Dino - Clean and modern Jabber/XMPP chat client.
Discord - All-in-one voice and text chat for gamers that’s free, secure, and works on both your desktop and phone.
Element - A glossy Matrix collaboration client for the web.
Gitter - Gitter — Where developers come to talk. Gitter is designed to make community messaging, collaboration and discovery as smooth and simple as possible.
Guilded - Guilded is the best app for gaming chat. Guilded is perfect for gaming with friends, clans, guilds, communities, esports, LFG and teams. And it’s free.
Jami - Chat. Talk. Share. Jami is a free and universal communication platform which preserves the users’ privacy and freedoms. Formerly Ring.
Jitsi - Jitsi is a free and open source multiplatform voice, videoconferencing and instant messaging application for Windows, Linux, Mac OS X and Android.
Mattermost - Mattermost is a secure collaboration platform that is open, flexible, and deeply integrated with the tools you love.
qTox - A simple distributed, secure messenger with audio and video chat capabilities.
Revolt - Revolt is an open source user-first chat platform.
Rocket.Chat - Rocket.Chat is an open-source fully customizable communications platform developed in JavaScript for organizations with high standards of data protection.
Session - Session is an end-to-end encrypted messenger that minimises sensitive metadata, designed and built for people who want absolute privacy and freedom from any form of surveillance.
Signal - An end-to-end encrypted chat app that focuses on privacy for all. Say “hello” to privacy.
Skype - Skype keeps the world talking, for free.
Slack - Real-time messaging, archiving and search for modern teams.
Telegram - A messaging app with a focus on speed and security, it’s super fast, simple and free.
Twake - Open-source alternative to Microsoft Teams.
Viber - Viber for Linux lets you send free messages and make free calls to other Viber users on any device and network, in any country.
Wire - Secure communication. Full privacy.
Zulip - Zulip is a powerful, open source group chat application that combines the immediacy of real-time chat with the productivity benefits of threaded conversations.

Data Backup and Recovery

Back In Time - A simple backup tool for Linux, inspired by “flyback project”.
BorgBackup - A deduplicating backup program with compression and authenticated encryption.
bup - Very efficient backup system based on the git packfile format, providing fast incremental saves and global deduplication (among and within files, including virtual machine images).
Deja Dup - A simple backup tool with built-in encryption.
Duplicacy - Duplicacy is a new generation cross-platform cloud backup tool based on the idea of Lock-Free Deduplication. CLI version is free for personal use and is open-source, GUI and commercial use require licensing.
Duplicity - Duplicity does directory backups by producing encrypted tar-format volumes and uploading them to a remote or local file server.
FreeFileSync - FreeFileSync is a folder comparison and synchronization software that creates and manages backup copies of all your important files. Instead of copying every file every time, FreeFileSync determines the differences between a source and a target folder and transfers only the minimum amount of data needed.
Kopia - Cross-platform backup tool for Windows, macOS & Linux with fast, incremental backups, client-side end-to-end encryption, compression and data deduplication.
Photorec - PhotoRec is file data recovery software designed to recover lost files including video, documents and archives from hard disks, CD-ROMs, and lost pictures (thus the Photo Recovery name) from digital camera memory.
Pika Backup - Pika Backup is designed to save your personal data and does not support complete system recovery. Pika Backup is powered by the well-tested BorgBackup software.
Qt-fsarchiver - Qt-fsarchiver is a GUI for the fsarchiver program to save/restore partitions, folders and even the MBR/GPT table. The program is for systems based on Debian, OpenSuse or Fedora.
rclone - Rclone is a command line program to sync files and directories to and from various cloud storage solutions. It also allows encrypted backups.
restic - restic is a backup program that is fast, efficient and secure. It supports the three major operating systems (Linux, macOS, Windows) and a few smaller ones (FreeBSD, OpenBSD).
rsnapshot - rsnapshot is a command line utility based on rsync to make periodic snapshots of local/remote machines. The code makes extensive use of hard links whenever possible to greatly reduce the disk space required.
System Rescue CD - SystemRescueCd is a Linux system rescue disk available as a bootable CD-ROM or USB stick for administrating or repairing your system and data after a crash.
TestDisk - TestDisk is powerful free data recovery software! It was primarily designed to help recover lost partitions and/or make non-booting disks bootable again when these symptoms are caused by faulty software.
Timeshift - System restore tool for Linux. Creates filesystem snapshots using rsync+hardlinks, or BTRFS snapshots. Supports scheduled snapshots, multiple backup levels, and exclude filters. Snapshots can be restored while system is running or from Live CD/USB.
Vorta - Vorta is a backup client for macOS and Linux desktops. It integrates the mighty BorgBackup with your desktop environment to protect your data from disk failure, ransomware and theft.

Desktop Customization

Desktop Icon Packs

Candy Icons - An icon theme colored with sweet gradients.
Flat Remix - Flat Remix is an icon theme inspired by material design. It is mostly flat using a colorful palette with some shadows, highlights, and gradients for some depth.
Fluent Icon Theme - Fluent icon theme for linux desktops.
La Capitaine Icon Theme - A macOS and Material design inspired icon theme designed to fit into most desktop environments.
Moka Icon Theme - Moka was created with simplicity in mind. With the use simple geometry & bright colours.
Numix Icon Theme - A flat icon theme that comes in two varieties, Numix Main, and Numix circle.
Papirus Icon Theme - SVG icon theme for Linux systems, based on Paper with a few extras like (hardcode-tray support, kde-color-scheme support, libreoffice icon theme, filezilla theme, smplayer themes, …) and other modifications. The theme is available for GTK and KDE.
Qogir Icon Theme - A flat colorful design icon theme for linux desktops.
Reversal Icon Theme - A colorful design icon theme for linux desktops.
Tela Icon Theme - A flat colorful Design icon theme.
WhiteSur Icon Theme - MacOS Big Sur style icon theme for linux desktops.
Zafiro Icons - Minimalist icons created with the flat-desing technique, utilizing washed out colors and always accompanied by white.

Desktop Themes

Ant Theme - Ant is a flat GTK theme for Ubuntu and other GNOME-based Linux desktops it comes in three varieties: vanilla, Bloody, or Dracula.
Arc Theme - A flat theme with transparent elements.
Catppuccin - Catppuccin is a community-driven pastel theme that aims to be the middle ground between low and high contrast themes.
Dracula - A dark theme using the awesome Dracula color pallete.
Flat Remix - Flat Remix is a GTK application theme inspired by material design.
Graphite - Graphite GTK theme.
Gruvbox - A GTK theme based on the Gruvbox colour palette.
Kimi - Kimi is a light Gtk3.20+ theme.
Layan - Layan is a flat Material Design theme for GTK 3, GTK 2 and Gnome-Shell which supports GTK 3 and GTK 2 based desktop environments like Gnome, Budgie, etc.
Material Ocean Theme - A material design theme with oceanic colors(GTK, QT).
Mojave GTK Theme - Mojave is a Mac OSX like theme for GTK 3, GTK 2 and GNOME-Shell which supports GTK 3 and GTK 2 based desktop environments like GNOME, Pantheon, XFCE, Mate, etc.
Nordic - Dark Gtk3.20+ theme created using the awesome Nord color pallete.
Orchis theme - Orchis is a Material Design theme for GNOME/GTK based desktop environments.
Qogir - Qogir is a flat Design theme for GTK.
Sweet - Light and dark colorful Gtk3.20+ theme.
WhiteSur GTK Theme - MacOS Big Sur like theme for GNOME desktops.

Desktop Widgets and Theme Utilities

Conky - Conky is a free, light-weight system monitor for X, that displays any kind of information on your desktop.
Extension Manager - A utility for browsing and installing GNOME Shell Extensions.
GNOME Extensions - Extensions for the GNOME Desktop Environment.
GNOME Look - A website that hosts a Large amounts of community created icons, shell themes, fonts, and many more assets that can be used to customize your GNOME desktop environment.
Gradience - Gradience is a tool for customizing Libadwaita applications and the adw-gtk3 theme.
Hardcode Tray - This script fixes hardcoded tray icons in Linux by automatically detecting your default theme, the right icon size, the hard-coded applications, the right icons for each indicator and fix them.
Lemonbar - Super fast, lightweight, and mnml status bar for Linux.
Login Manager Settings - A settings app for GNOME’s Login Manager, GDM.
Themix GUI designer - A Graphical application for generating different color variations of Oomox (Numix-based) and Materia (ex-Flat-Plat) themes (GTK2, GTK3, Cinnamon, GNOME, Openbox, Xfwm), Archdroid, Gnome-Color, Numix, Papirus and Suru++ icon themes.
Pling Store - Desktop app of openDesktop.org, which is one of the largest communities where developers and artists share applications, themes and other content.
Polybar - Fast and easy-to-use status bar.
Wpgtk - A universal theming software for all themes defined in text files, compatible with all terminals, with default themes for GTK2, GTK+, openbox and Tint2 that uses pywal as it’s core for colorscheme generation.

Development

Android

Anbox - Run Android applications on any GNU/Linux operating system.
Android Studio - The Official IDE for Android: Android Studio provides the fastest tools for building apps on every type of Android device.
Waydroid - Waydroid uses a container-based approach to boot a full Android system on a regular GNU/Linux system like Ubuntu.

C++

CLion - A cross-platform and powerful IDE for C/C++.
Code::Blocks - Code::Blocks is a free C/C++ and Fortran IDE built to meet the most demanding needs of its users. It is designed to be very extensible and fully configurable.
CodeLite - A Free, open source, cross platform C/C++, PHP and Node.js IDE.
QT Creator - Fully-stocked cross-platform integrated development environment for easy creation of connected devices, UIs and applications.

Database

Cassandra - Apache Cassandra database is the right choice when you need scalability and high availability without compromising performance. Linear scalability and proven fault-tolerance on commodity hardware or cloud infrastructure make it the perfect platform for mission-critical data.
CouchDB - Seamless multi-master sync, that scales from Big Data to Mobile, with an Intuitive HTTP/JSON API and designed for Reliability.
DataGrip - DataGrip is a cross-platform IDE that is aimed at DBAs and developers working with SQL databases. It has built-in drivers that support DB2, Derby, H2, HSQLDB, MySQL, Oracle, PostgreSQL, SQL Server, Sqlite and Sybase.
DBeaver - A universal database client supporting multiple platforms and databases.
Kexi - Kexi is an open source visual database applications creator, a long-awaited competitor for programs like MS Access or Filemaker.
MariaDB - One of the most popular database servers. Made by the original developers of MySQL.
MongoDB - MongoDB is a free and open-source cross-platform document-oriented database program, uses JSON-like documents with schemas.
MyCLI - MyCLI is a command line interface for MySQL, MariaDB, and Percona with auto-completion and syntax highlighting.
MySQL - MySQL is the world’s leading open source database thanks to its proven performance, reliability and ease-of-use. It is used by high profile web properties including Facebook, Twitter, YouTube, Yahoo! and many more.
MySQL Workbench - MySQL Workbench is a unified visual tool for database architects, developers, and DBAs. MySQL Workbench provides data modeling, SQL development, and comprehensive administration tools for server configuration, user administration, backup, and much more.
OceanBase - Distributed relational database. Based on the Paxos protocol and its distributed structure, it provides high availability and linear scalability.
OmniDB - Browser-based tool that visually create, manage, and view databases.
OracleDB - Object-relational database management system produced and marketed by Oracle Corporation, one of the most trusted and widely-used relational database engines.
Percona MongoDB - Percona Server for MongoDB provides all features and benefits of MongoDB Community Server.
Percona Monitoring - Percona Monitoring and Management (PMM) is a free and open-source platform for managing and monitoring MySQL, MariaDB and MongoDB performance. You can run PMM in your own environment for maximum security and reliability. It provides thorough time-based analysis for MySQL, MariaDB and MongoDB servers to ensure that your data works as efficiently as possible.
Percona MySQL - Percona Server for MySQL is a free, fully compatible, enhanced, open source drop-in replacement for MySQL that provides superior performance, scalability and instrumentation.
Percona XtraDB Cluster - Percona XtraDB Cluster is an active/active high availability and high scalability open source solution for MySQL clustering. It integrates Percona Server and Percona XtraBackup with the Codership Galera library of MySQL high availability solutions in a single package that enables you to create a cost-effective MySQL high availability cluster.
pgcli - Pgcli is a command line interface for Postgres with auto-completion and syntax highlighting.
PostgreSQL - PostgreSQL is a powerful, open source object-relational database system with more than 15 year development. PostgreSQL is not controlled by any corporation or other private entity and the source code is available free of charge.
Sqlite - SQLite is an in-process library that implements a self-contained, serverless, zero-configuration, transactional SQL database engine.
Sqlite Browser - Visually create, manage, and view sqlite database files.
WebDB - Open Source and Efficient Database IDE. Easy server connection, Modern ERD, Intelligent data generator, IA assistant, NoSQL structure manager, Time machine and Powerful query editor.

Game Engines

Bevy Engine - A refreshingly simple data-driven game engine built in Rust.
Defold - Defold is a completely free to use game engine for development of desktop, mobile and web games.
Epic Asset Manager - An unofficial client to install Unreal Engine, download and manage purchased assets, projects, plugins and games from the Epic Games Store.
Flax Engine - Flax Engine – multi-platform 3D game engine.
GameMaker - The Ultimate 2D Game Development Environment.
GDevelop - Open-source, cross-platform game engine designed to be used by everyone.
Godot Engine - Godot provides a huge set of common tools, so you can just focus on making your game without reinventing the wheel.
Haxeflixel - 2D game engine written in Haxe.
Heaps - Heaps is a cross platform graphics engine designed for high performance games. It’s designed to leverage modern GPUs that are commonly available on desktop, mobile and consoles.
Open 3D Engine - Open 3D Engine (O3DE) is a modular, open source, cross-platform 3D engine built to power anything from AAA games to cinema-quality 3D worlds to high-fidelity simulations.
Stride - Stride is an open-source C# game engine for realistic rendering and VR.
Unity - The world’s leading platform for real-time content creation.
Unreal Engine - The world’s most open and advanced real-time 3D creation tool.
Wicked Engine - 3D engine with modern graphics.
Git
cgit - A hyperfast web frontend for git repositories written in C.
Forgejo - Forgejo is a self-hosted lightweight software forge. It is a “soft” fork of Gitea with a focus on scaling, federation and privacy.
Giggle - Giggle is a graphical frontend for the git content tracker.
Gisto - Gisto is a code snippet manager that runs on GitHub Gists and adds additional features such as searching, tagging and sharing gists while including a rich code editor.
Git - Git is a free and open source distributed version control system designed to handle everything from small to very large projects with speed and efficiency.
GitCola - Git Cola is a sleek and powerful graphical Git client. Written in Python and GPL-licensed.
Gitea - Gitea is a community managed lightweight code hosting solution written in Go. It is published under the MIT license.
Gitg - Gitg is the GNOME GUI client to view git repositories.
GitKraken - The downright luxurious Git GUI client for Windows, Mac & Linux.
GitLab - GitLab is a web-based Git repository manager with wiki and issue tracking features.
Gitolite - Gitolite allows you to setup git hosting on a central server, with fine-grained access control and many more powerful features.
Gittyup - Gittyup is a graphical Git client designed to help you understand and manage your source code history.
Gogs - A painless self-hosted Git service.
lazygit - A simple terminal UI for git commands, written in Go with the gocui library.
SmartGit - SmartGit is a Git client with support for GitHub Pull Requests+Comments and SVN.

Golang

GoLand - Commercial IDE by JetBrains aimed at providing an ergonomic environment for Go development.
LiteIDE X - LiteIDE is a simple, open source, cross-platform Go IDE.

Java

BlueJ - A free Java Development Environment designed for beginners, used by millions worldwide.
Eclipse - Eclipse is famous for our Java Integrated Development Environment (IDE), but can also download packages to support C/C++ IDE and PHP IDE.
IntelliJ IDEA Community - Open source IDE by Jetbrains for JVM and Android development.
IntelliJ IDEA Ultimate - Commercial IDE by Jetbrains for web and enterprise JAVA development.

Javascript

Webstorm - Powerful IDE for modern JavaScript development, made by JetBrains.

Microcomputer and Embedded Devices

Arduino IDE - The open-source Arduino Software (IDE) makes it easy to write code and upload it to the board.
Fritzing - Fritzing is an open-source hardware initiative that makes electronics accessible as a creative material for anyone.
Sloeber IDE - Sloeber IDE. The Arduino IDE for Eclipse.

Multiple Languages Support

Aptana - Aptana Studio harnesses the flexibility of Eclipse and focuses it into a powerful web development engine.
KDevelop - It is a free, open source IDE, feature-full, plugin extensible IDE for C/C++ and other programming languages.
MonoDevelop - Cross platform IDE for C#, F# and more.
Netbeans - NetBeans IDE lets you quickly and easily develop Java desktop, mobile, and web applications, as well as HTML5 applications with HTML, JavaScript, and CSS.
Pants Build - Powerful build system for Python, JVM, Go and more, relies on static analysis instead of boilerplate to make adoption and use easy.

PHP

PHPStorm - Lightning-smart and powerful PHP IDE from Jetbrains.

Python

PyCharm Community - Open source IDE by Jetbrains for pure Python development.
PyCharm Professional - Commercial IDE by Jetbrains for scientific and web Python development.

Ruby

RubyMine - Professional Ruby and Rails IDE.

Shell

Fish - A smart and user-friendly command-line shell.
Fisher - A plugin manager for fish shell.
Ipython - Powerful Python shell.
nushell - A new type of shell.
Oh-my-fish - Provides various packages and themes to extend the functionality of your fish shell.
Oh-my-zsh - A delightful community-driven framework for managing your zsh configuration.
oilshell - Oil is a new Unix shell for Python and JavaScript users who avoid shell!.
Shellcheck - ShellCheck, a static analysis tool for shell scripts.
Zim - Modular, customizable, and blazing fast Zsh framework.
Zsh - A powerful command line shell.

Supporting Tools

bzip3 - A versatile statistical compressor with better compression ratio than standard Linux tools (gzip, bzip2, etc…).
Collision - Collision comes with a simple & clean UI, allowing anyone, from any age and experience group, to generate, compare and verify MD5, SHA-256, SHA-512 and SHA-1 hashes.
Cscope - Cscope is a developer’s tool for browsing source code. Although cmd-line application, it is nativelly integrated with Vim editor. It allows searching code for symbols, definitions, functions (called/calling), regex, files.
Curtail - Curtail is an useful image compressor, supporting PNG, JPEG and WEBP file types.
Czkawka - Multi functional app to find duplicates, empty folders, similar images etc.
Devilbox - The devilbox is a modern and highly customisable dockerized PHP stack supporting full LAMP and MEAN and running on all major platforms. The main goal is to easily switch and combine any version required for local development.
Dialect - A translation app for GNOME.
Diffuse - Diffuse is a graphical tool for comparing and merging text files. It can retrieve files for comparison from Bazaar, CVS, Darcs, Git, Mercurial, Monotone, RCS, Subversion, and SVK repositories.
Docker - Docker is a set of platform as a service products that use OS-level virtualization to deliver software in packages called containers.
Fossil - Self-contained, distributed software configuration management system with integrated bug-tracking, wiki, technotes and web interface.
Gaphor - A simple and fast software and systems modeling tool.
Genymotion - Genymotion is a fast third-party emulator that can be used instead of the default Android emulator.
Glade - GTK+ User Interface Builder.
Heaptrack - A heap memory profiler for Linux.
hors - Instant coding answers via the command line.
Insomnia - A simple, beautiful, and free REST API client.
Intel® VTune™ Profiler - GUI and Commandline tool from Intel for finding and fixing performance bottlenecks in software written in C/C++, C#, Java, and more.
Jupyter Notebook - An open source program that provides interactive data and scientific computing information across over 40 programming languages.
lazydocker - A simple terminal UI for both docker and docker-compose, written in Go with the gocui library.
Meld - Meld is a visual diff and merge tool that helps you compare files, directories, and version controlled projects.
Metadata Cleaner - This tool allows you to view metadata in your files and to get rid of it, as much as possible.
Mockingbot - Mockingbot is an easy-to-use prototyping tool.
Okteta - Hex Editor for viewing and editing the raw data of files.
Pencil - An open-source GUI prototyping tool that’s available for ALL platforms.
Pick - Simple color picker.
Postman - Postman, allows a user to develop and test APIs quickly.
Rabbit VCS - RabbitVCS is a set of graphical tools written to provide simple and straightforward access to the version control systems you use.
Sourcetrail - Sourcetrail is a free and open-source cross-platform source explorer that helps you get productive on unfamiliar source code.
StarUML - A sophisticated software modeler.
Uncrustify - Source Code Beautifier for C/C++, C#, ObjectiveC, D, Java, Pawn and VALA. See UniversalIndentGUI below.
UniversalIndentGUI - UniversalIndentGUI offers a live preview for setting the parameters of nearly any indenter.
Valgrind - Valgrind is a GPL’d system for debugging and profiling Linux programs.
Vershd - Vershd is the free for personal use effortless Git GUI for Windows, Mac, & Linux.
Wdiff - The GNU wdiff program is a front end to diff for comparing files on a word per word basis. It collects the diff output and uses it to produce a nicer display of word differences between the original files.
Workbench - Workbench goal is to let you experiment with GNOME technologies, no matter if tinkering for the first time or building and testing a custom GTK widget.
Zeal - Zeal is an offline documentation browser for software developers.

E-Book Utilities

Arianna - An eBook reader and library management applicatiion for .epub files from KDE.
Bookworm - A simple, focused eBook reader.
Buka - A program for EBook Management.
Calibre - Incredibly ugly but powerful software for ebook management and conversion.
Calibre-web - Calibre Web is a web app providing a clean interface for browsing, reading and downloading eBooks using an existing Calibre database.
Easy Ebook Viewer - Modern GTK Python Ebook Reader app to easily read epub files.
Evince - Evince is a document viewer for multiple document formats. The goal of evince is to replace the multiple document viewers that exist on the GNOME Desktop with a single simple application.
FBReader - One of the most popular eReader apps.
Foliate - Foliate is a simple and modern GTK eBook viewer.
Foxit - Foxit Reader 8.0—Award-winning PDF Reader.
GNOME Books - GNOME Books is application for listing, searching and reading eBooks.
K2pdfopt - K2pdfopt optimizes PDF/DJVU files for mobile e-readers (e.g. the Kindle) and smartphones.
Komikku - Manga reader with support for online and offline reading, automatic downloads, locally stored manga formats (CBZ and CBR formats), and collection organization features.
Lucidor - Lucidor is a computer program for reading and handling e-books. Lucidor supports e-books in the EPUB file format, and catalogs in the OPDS format.
MasterPDF editor - Master PDF Editor a convenient and smart PDF editor for Linux.
Mcomix - GTK+ comic book viewer.
MuPDF - A lightweight PDF and XPS viewer.
Okular - Okular is a universal document viewer based developed by KDE. Okular works on multiple platforms, including but not limited to Linux, Windows, Mac OS X, BSD, etc.
PDF Arranger - PDF Arranger is a small application, which helps the user to merge or split pdf documents and rotate, crop and rearrange their pages using an interactive and intuitive graphical interface.
PDFsam - A desktop application to split, extract pages, rotate, mix and merge PDF files.
PDF Slicer - PDF Slicer is a simple application to extract, merge, rotate and reorder pages of PDF documents.
PDF Studio - An easy to use, full-featured PDF editing software that is a reliable alternative to Adobe Acrobat and provides all PDF functions needed at a fraction of the cost. PDF Studio maintains full compatibility with the PDF Standard.
qpdfview - qpdfview is a tabbed document viewer.
Sigil - Sigil is a multi-platform EPUB ebook editor.
Zathura - Zathura is a highly customizable and functional document viewer.

Electronic

KiCAD - An EDA suite for schematic and circuit board design.
Logisim Evolution - Graphical tool for designing and simulating digital logic curcuits. Successor of LogiSim.

Education

Anki - Powerful, intelligent flash cards which makes remembering things easy.
Artha - Artha is a free cross-platform English thesaurus that works completely off-line and is based on WordNet.
BibleTime - BibleTime is a Bible study application based on the Sword library and Qt toolkit.
Celestia - The free space simulation that lets you explore our universe in three dimensions.
Chemtool - Chemtool is a small program for drawing chemical structures on Linux.
Colobot - Colobot: Gold Edition is a real-time strategy game, where you can program your units (bots) in a language called CBOT, which is similar to C++ and Java.
Epoptes - An open source computer lab management and monitoring tool.
GAP - A computer algebra system for computational discrete algebra with particular emphasis on computational group theory.
Gcompris - GCompris is a high quality educational software suite comprising of numerous activities for children aged 2 to 10.
Geogebra - The graphing calculator for functions, geometry, algebra, calculus, statistics and 3D mathematics.
GNOME Dictionary - A powerful dictionary for GNOME.
GNU Octave - GNU Octave is a scientific programming language, primarily intended for numerical computations, that is mostly compatible with MATLAB.
GNU Typist - ncurses-based free-software typing instructor.
GNUKhata - Open source accounting software.
Google Earth - Google Earth is a virtual globe, map and geographical information program.
GPeriodic - GPeriodic is a periodic table application for Linux.
KDE Edu Suite - Free Educational Software based on the KDE technologies.
Klavaro - A touch typing tutor very flexible, supporting customizable keyboard layouts. You can edit and save new or unknown keyboard layouts, as the basic course was designed to not depend on specific ones. Also, there are some charts about the learning process.
Ktouch - KTouch is a program to learn and practice touch typing.
MAPLE - Maple is math software that combines the world’s most powerful math engine with an interface that makes it extremely easy to analyze, explore, visualize, and solve mathematical problems.
MapTiler - MapTiler generates zoomable raster maps from images in user-defined coordinate system.
Marble - Marble is a virtual globe and world atlas — your swiss army knife for maps.
MATLAB - The MATLAB platform is optimized for solving engineering and scientific problems. MATLAB helps you take your ideas beyond the desktop. You can run your analyses on larger data sets and scale up to clusters and clouds.
Mathematica - The world’s definitive system for modern technical computing.
Maxima - Maxima is a system for the manipulation of symbolic and numerical expressions, including differentiation, integration, Taylor series, Laplace transforms, ordinary differential equations, systems of linear equations, and much more.
Mendeley - Mendeley is a program for managing and sharing research papers, finding research data and collaborating online.
Moodle - Course management system for online learning.
OpenEuclid - OpenEuclide is a 2D geometry software: figures are defined dynamically by describing formal geometrical constraints.
OpenMapTiles - OpenMapTiles is a set of open-source tools for self-hosting of OpenStreetMaps in more than 50 languages. It provides both raster as well as vector tiles, WMS, WMTS, support for JavaScript viewers and mobile SDK.
OpenSIS - School Management Software that Increases Student Achievements & Teacher Performances.
PARI/GP - A computer algebra system for fast computations in number theory.
SageMath - A mathematical software with features covering many aspects of mathematics, including algebra, combinatorics, numerical mathematics, number theory, and calculus.
Scipy - SciPy is a Python-based ecosystem of open-source software for mathematics, science, and engineering.
Scratch - With Scratch, you can program your own interactive stories, games, and animations — and share your creations with others in the online community.
Stellarium - Stellarium is a free open source planetarium for your computer.
Sugar Desktop Environment - Sugar is a learning platform that reinvents how computers are used for education. Collaboration, reflection, and discovery are integrated directly into the user interface.
TuxType - An educational typing tutorial game starring Tux.
UGENE - UGENE is free open-source cross-platform integrated GUI-based bioinformatics software.
Veyon - Veyon is a computer management software for classrooms, it allows a teacher to control student computers and guide students over a computer network.

Email

aerc - aerc is an efficient, extensible email client that runs in the terminal. It features special support for git email workflows, reviewing patches, and processing HTML emails in a terminal-based browser.
Claws - Claws is an email client and news reader, featuring sophisticated interface, easy configuration, intuitive operation, abundant features and plugins, robustness and stability.
ElectronMail - ElectronMail is an Electron-based unofficial desktop client for ProtonMail and Tutanota end-to-end encrypted email providers.
Evolution - Evolution is a personal information management application that provides integrated mail, calendaring and address book functionality.
Geary - Geary is an email application built for GNOME 3. It allows you to read and send email with a simple, modern interface.
Hiri - Hiri is a business focused desktop e-mail client for sending and receiving e-mails, managing calendars, contacts, and tasks.
KMail - KMail is the email component of Kontact, the integrated personal information manager from KDE.
Mailnag - Mailnag is a daemon program that checks POP3 and IMAP servers for new mail.
Mailspring - A beautiful, fast and maintained fork of Nylas Mail (dead) by one of the original authors.
Sylpheed - Lightweight and user-friendly e-mail client.
Thunderbird - Thunderbird is a free email application that’s easy to set up and customize and it’s loaded with great features.
Trojita - A super fast desktop email client for Linux.
Vmail - Vim-like Gmail client.

File Manager

7Zip - A very capable program that can unzip nearly any file archiving format.
Caja - Is the default file manager for the MATE desktop environment, it is very fast and simple to use.
CliFM - The shell-like, command line terminal file manager: simple, fast, extensible, and lightweight as hell.
Dolphin - Dolphin is the default file manager of the KDE desktop environment featuring usability as well as functionality.
Double Commander - Double Commander is a cross platform open source file manager with two panels side by side. It is inspired by Total Commander and features some new ideas.
Konqueror - Konqueror is KDE’s Webbrowser and swiss-army-knife for any kind of file-management and file previewing.
Krusader - Krusader is an advanced twin panel (commander style) file manager for KDE and other desktops in the *nix world, similar to Midnight or Total Commander.
Midnight Commander - A feature rich full-screen file manager that allows you to copy, move and delete files and whole directory trees.
Nautilus - Nautilus (Files) is a file manager designed to fit the GNOME desktop design and behaviour, giving the user a simple way to navigate and manage its files.
Nemo - Nemo is the file manager for the Cinnamon desktop environment.
nnn - A very lightweight and fast terminal file browser with excellent desktop integration.
QDirStat - Qt-based directory statistics - KDirStat without any KDE, from the original KDirStat author.
Ranger - Ranger is a console file manager with VI key bindings.
SpaceFM - Multi-panel tabbed file and desktop manager with built-in VFS, udev- or HAL-based device manager, customisable menu system and bash-GTK integration.
Thunar - Thunar is a modern file manager for the Xfce Desktop Environment.
Vifm - Vifm is an ncurses based file manager with VI like keybindings, which also borrows some useful ideas from mutt.

Games

City Building Simulation

Dwarf Fortress - A famously complex simulation of a High Fantasy Dwarf Fortress, fight goblins, and slay massive legendary beasts. Strike the earth!
OpenTTD - An open-source clone of Transport Tycoon Plus with major improvements.
Simutrans - Simutrans is a freeware and open-source transportation simulator.
Unknown Horizons - A 2D realtime strategy simulation with an emphasis on economy and city building. Multiplayer currently broken.

Command Line

2048 - Play the famous 2048 in commandline.
Bastet - Play Tetris in commandline.
gambit - Play chess in your terminal.
nSnake - Play the classic Nokia snake game on the command line.
Pacman4console - Play Pacman game in console.
Pokete - A terminal based Pokemon like game.
tty-solitaire - Play solitaire in your terminal!

Engine Re-creations (require the actual game)

Freeablo - A free recreation of the original Diablo game engine that runs natively on Linux. Requires the original game assets.
NXEngine - A source port of Cave Story that runs natively on Linux, source needs to be built.
NXEngine-evo - A somewhat upgraded/refactored version of NXEngine by Caitlin Shaw.
openage - Free (as in freedom) open source clone of the Age of Empires II engine, source needs to be built.
OpenMW - A recreation of the Morrowind engine, expanding upon the original. It can be used to play legitimate copies of original game.
OpenRA - Classic strategy games, rebuilt for the modern era. Open source.
OpenRCT2 - A recreation of the Rollercoaster Tycoon 2 engine. Requires the original games assests.

FPS

ChaosEsqueAnthology Disc 1 ChaosEsqueAnthology Disc 2 - A modification of Xonotic which included extended weapons, maps, vehicles, buildable buildings, mounted weapons, spell casting, monsters, player characters, textures, and game mode (such as colorwar (think liquidwar)).
Freedoom - Free version of the original Doom games, with newly created free-licensed assets.
OpenArena - Free and open-source clone of Quake III Arena, based on the realeased source code, with newly created assets.
Red Eclipse - Red Eclipse is a fun-filled new take on the first person arena shooter, which lends itself toward a balanced gameplay, with a general theme of agility in a variety of environments.
Urban Terror - A “Hollywood” tactical shooter - realism based, but the motto is “fun over realism”.
Xonotic - Arena shooter inspired by Unreal Tournament and Quake.
Zandronum - Leading the way in newschool multiplayer Doom online.
Zdoom - ZDoom is a source port for the modern era, supporting current hardware and operating systems and sporting a vast array of user options.

Miscellaneous

FlightGear - Professional quality 3D flight simulator.
Mudlet - A cross-platform, open source, and super fast MUD (text-only MMORPGs) client with scripting in Lua.
Neverball - Addictive ball-rolling game with many levels, avatars and an ability to record replays.
OhMyGiraffe - A delightful game of survival. A game about a giraffe eating fruit while being chased by lions.
Open Surge - A 2D platformer and game creation engine inspired by the 16-bit Sonic the Hedgehog games.
Snake Game - Cross-platform Classic Snake Game based on Node.js.
SuperTux - Clone of the popular sidescrolling Super Mario games.

Puzzle

Cockatrice - Cockatrice is an open-source multiplatform supported program for playing tabletop card games over a network.
Galois - Galois is a Falling Blocks type game that isn’t limited to the standard tetrominoes that most games in it’s genre are limited to.
GBrainy - Gbrainy is a brain teaser game with logic puzzles and memory trainers.
Pingus - 2D puzzle game that clones the popular Lemmings. Your goal is to guide a group of penguins safely across the game map.
Tabletop Club - An open-source platform for playing tabletop games in a physics-based 3D environment for Windows, macOS, and Linux! Made with the Godot Engine.

Racing

MotoGT - 2D top-viewed game where you drive a MotoGP bike.
SuperTuxKart - SuperTuxKart is a 3D open-source arcade racer with a variety characters, tracks, and modes to play.
XMoto - 2D motocross physics-based game requiring a lot of skill to master, with a built-in replay-recording and sharing system.

RPG

FLARE - Singleplayer Diablo clone with beautiful original graphics.
FreedroidRPG - Sci-fi 2D top-down RPG inspired by Diablo games.
Ryzom - Free and open-source 3D MMORPG with unique features and deep lore. The official servers allow free accounts as well as paid subscriptions with extra features.
Tales of Maj’Eyal - Tales of Maj’Eyal (ToME) is a free, open source roguelike RPG, featuring tactical turn-based combat and advanced character building.
Veloren - Veloren is a multiplayer voxel RPG written in Rust. It is inspired by games such as Cube World, Legend of Zelda: Breath of the Wild, Dwarf Fortress and Minecraft.
Zelda Classic - A tribute to Nintendo’s The Legend of Zelda with additional quests, items and challenges.
Zelda: Mystery of Solarus DX - A direct sequel to The Legend of Zelda: A Link to the Past on the SNES, using the same graphics and game mechanisms.

RTS

0 A.D. - Age of Empires like RTS game of ancient warfare.
Mindustry - The automation tower defense RTS, written in Java.
Nethack - Open-source rogue-like with ASCII graphics.
TripleA - Open source grand strategy game with “Axis and Allies” game rules.
Warzone 2100 - Open-source real-time strategy game that takes place after a nuclear war.
Widelands - Widelands is a open source RTS game with singleplayer campaigns and a multiplayer mode inspired by Settlers II.

Sandbox

Factorio - A factory building sandbox game.
Mcpelauncher - Unoffical Open-source launcher for Minecraft: Bedrock edition.
Minecraft - Minecraft is a game about placing blocks and going on adventures. Explore randomly generated worlds and build amazing things from the simplest of homes to the grandest of castles.
Minetest - Open-source Minecraft written in C++ (uses less resources) and includes modding API.
MultiMC - MultiMC is an alternative launcher for Minecraft. It allows you to have multiple, cleanly separated instances of Minecraft (each with their own mods, resource packs, saves, etc) and helps you manage them and their associated options with a simple and powerful interface.
Prism Launcher - A custom launcher for Minecraft that allows you to easily manage multiple installations of Minecraft at once (Fork of MultiMC and PolyMC).

Shooter

AstroMenace - Hardcore 3D space scroll-shooter with spaceship upgrade possibilities.
C-Dogs SDL - Classic overhead run-and-gun game in beautiful pixel-art.

Turn Based Strategy

Battle for Wesnoth - The Battle for Wesnoth is an open source, turn-based strategy game with a high fantasy theme. It features both singleplayer and online/hotseat multiplayer combat.
FreeCiv - Freeciv is a Free and Open Source empire-building strategy game inspired by the history of human civilization.
HedgeWars - 2D game where teams compete in the style of the popular Worms games.
Tanks of Freedom - Pixel-art military strategy implemented in Godot game engine.

Gaming Applications

Launchers

Bottles - Easily manage wine prefixes in a new way. Run Windows software and games on Linux.
Cartridges - A GTK4 + Libadwaita game launcher.
GameHub - GameHub is a unified library for all your games. It allows you to store your games from different platforms into one program to make it easier for you to manage your games.
Heroic Games Launcher - A Native GOG and Epic Games Launcher for Linux, Windows and Mac.
itch - The itch.io app. All of your downloads are kept in a single place and are automatically updated. Plenty of free games.
Lutris - Lutris is an open gaming platform for Linux. It helps you install and manage your games in a unified interface.
Minigalaxy - A simple GOG client for Linux.
PlayOnLinux - A front-end for Wine.
Steam - Gaming store, which opens the gates to many games.

Tools

BoilR - Synchronize games from other platforms into your Steam library.
Boxtron - Steam Play compatibility tool to run DOS games using native Linux DOSBox. It is a sister project of Luxtorpeda and DOSBox Staging.
CryoUtilities - A utility to improve performance and help manage storage on Steam Deck.
Decky Loader - A plugin loader for the Steam Deck.
DOSBox Staging - DOSBox Staging is a modern continuation of DOSBox with advanced features and current development practices.
GameMode - Optimise Linux system performance on demand.
GOverlay - GOverlay is an open source project that aims to create a Graphical UI to help manage Linux overlays.
Luxtorpeda - Suite of Steam Play compatibility tools to run games using native Linux engines.
MangoHud - A Vulkan and OpenGL overlay for monitoring FPS, temperatures, CPU/GPU load and more.
Nyrna - Suspend games and applications.
Roberta - Steam Play compatibility tool to run adventure games using native Linux ScummVM. It is a sister project of Luxtorpeda.
SC Controller - User-mode driver, mapper and GTK3 based GUI for Steam Controller, DualShock 4, and similar controllers.
ScummVM - ScummVM allows you to play classic graphic point-and-click adventure games, text adventure games, and RPGs, as long as you already have the game data files. ScummVM replaces the executable files shipped with the games, which means you can now play your favorite games on all your favorite devices.
Steam Deck Repo Manager - Install boot videos to your Steam Deck using Steam Deck Repo website API.
Steam ROM Manager - An app for managing ROMs in Steam.
SteamTinkerLaunch - Linux wrapper tool for use with the Steam client for custom launch options and 3rd party programs.

W.I.N.E.

GE-Proton - Compatibility tool for Steam Play based on Wine and additional components.
Kron4ek Wine Builds - Custom Wine builds and build scripts for Vanilla, Wine Staging, Wine-tkg and Proton.
Proton - Compatibility tool for Steam Play based on Wine and additional components, primarily developed by Valve and CodeWeavers.
ProtonPlus - A simple Wine and Proton manager for GNOME.
Protontricks - This is a wrapper script that allows you to easily run Winetricks commands for Steam Play/Proton games among other common Wine features, such as launching external Windows executables.
ProtonUp - CLI program and API to automate the installation and update of GE-Proton.
ProtonUp-Qt - Install and manage GE-Proton and Luxtorpeda for Steam and Wine-GE for Lutris with this graphical user interface.
Wine - Wine (“Wine Is Not an Emulator”) is a compatibility layer capable of running Windows applications on Linux, quality depends from game to game.
Wine-GE-Custom - Custom build of wine, made to use with lutris. Built with lutris’s buildbot.
Wine-tkg - The wine-tkg build systems, to create custom Wine and Proton builds.
Winetricks - Winetricks is an easy way to work around problems in Wine.
Wine-Wayland - Wine-wayland allows playing DX9/DX11 and Vulkan games using pure wayland and Wine/DXVK.

Machine Emulators

All-in-One

ares - A multi-system console emulation suite.
EmuDeck - Emulator configurator for Steam Deck.
GNOME Video Arcade - GNOME Video Arcade is a simple Mame frontend for any freedesktop.org compliant desktop environment.
Higan - Higan is a multi-system emulator that supports emulating a huge number of different systems including: NES, SNES, GameBoy, GameBoy Color, Gameboy Advance, NEC PC Engine, Sega Master System, and more. Here is a guide to install it on Linux Higan Installation.
MAME - MAME is an Arcade Cabinet emulator that strives for accuracy, and can play a huge number of different arcade games.
qmc2 - QMC2 is the successor to QMamecat, it is a gui for MAME and a ROM manager.
RetroArch - A front-end for a lot of game emulators.
RetroDECK - Everything you need for emulation on Steam Deck.

Atari

Stella - Is an Atari 2600 Emulator that is multiplatform.

Microsoft

xemu - Original Xbox Emulator for Windows, macOS, and Linux (Active Development).

Nintendo

Cemu - Software to emulate Wii U games and applications on PC.
DeSmuME - DeSmuME is a Nintendo DS emulator.
Dolphin Emulator - Dolphin is a GameCube / Wii emulator, allowing you to play games for these two platforms on PC with improvements.
melonDS - melonDS aims at providing fast and accurate Nintendo DS emulation.
mGBA - mGBA is an open-source Game Boy Advance emulator.
nestopia - nestopia is a Nintendo Entertainment System/Famicon emulator.
Ryujinx - Ryujinx is an open-source Nintendo Switch emulator created by gdkchan and written in C#.
Snes9x - Is a multiplatform Super Nintendo Entertainment System emulator that has gone through many incarnations, but is still being actively developed.
Visual Boy Advance-M - A Gameboy and Gameboy Advance Emulator that is still undergoing active development and can even emulate a system link between two gameboys.
ZSNES - A capable and commonly used Super Nintendo Entertainment System/Super Famicom emulator, many consider it the gold standard in SNES/Super Famicom emulation.

Sony

PCSX2 - PCSX2 is a free and open-source PlayStation 2 (PS2) emulator.
Play! - Play! is a PlayStation2 emulator for Windows, macOS, UNIX, Android, iOS and web browser platforms.
PPSSPP - PPSSPP is a PSP emulator that can run games full HD resolution. It can even upscale textures that would otherwise be too blurry as they were made for the small screen of the original PSP.
RPCS3 - RPCS3 is a multi-platform open-source Sony PlayStation 3 emulator and debugger written in C++ for Windows, Linux, macOS and FreeBSD.
Vita3K - Vita3K is an experimental PlayStation Vita emulator for Windows and Linux.

ZX Spectrum

Fuse - Fuse (the Free Unix Spectrum Emulator) is a ZX Spectrum emulator for Unix.

Graphics

Graphic Creation

Aseprite - Animated sprite editor & pixel art tool.
Blender - A free and open source complete 3D creation pipeline for artists and small teams.
Cinepaint - Open source deep paint software.
Drawing - This free basic raster image editor is similar to Microsoft Paint, but aiming at the GNOME desktop.
Gifcurry - Your open source video to GIF maker built with Haskell.
Gravit - Gravit Designer is a full featured free vector design app right at your fingertip.
Heron Animation - A free stop animation making program.
Inkscape - A powerful, free design tool for you , whether you are an illustrator, designer, web designer or just someone who needs to create some vector imagery.
Ipe - Ipe is a LaTeX powered drawing editor for creating figures and presentations in PDF format.
Karbon - An open source vector drawing program.
Knotter - A Program designed solely to help design and create Celtic Knots.
KolourPaint - KolourPaint is a simple painting program to quickly create raster images.
Krita - Open Source Software for Concept Artists, Digital Painters, and Illustrators.
Lunacy - Free design software that keeps your flow with AI tools and built-in graphics
Mypaint) - Mypaint is a paint program for use with graphics tablets.
Open DVD Producer - A modern, open source cross platform software to produce DVD images.
Pinta - Pinta is a free, open source program for drawing and image editing.
Pixelorama - A free & open-source 2D sprite editor, made with the Godot Engine!
StopMotion - Linux Stopmotion is a Free Open Source application to create stop-motion animations. It helps you capture and edit the frames of your animation and export them as a single file.
Sweet Home 3D - House interior and exterior designer with 3D preview, free model database, virtual visits and useful repository of plugins.
Synfig Studio - Open-source 2D animation software.
Scan Tailor - Scan Tailor is an interactive post-processing tool for scanned pages. For a tutorial on how to use it, consult its User Guide.
Skanpage - Simple multi-page document scanning application.
Vectr - Vectr is a free graphics software used to create vector graphics easily and intuitively. It’s a simple yet powerful web and desktop cross-platform tool to bring your designs into reality.
Xara Extreme - Xara Xtreme for Linux is a powerful, general purpose graphics program for Unix platforms including Linux, FreeBSD.
yEd Graph Editor - yEd is a powerful desktop application that can be used to quickly and effectively generate high-quality diagrams. Create diagrams manually, or import your external data for analysis. Our automatic layout algorithms arrange even large data sets with just the press of a button.

Image Editor

Aftershot - A powerful alternative to Adobe Photoshop.
Darktable - Darktable is an open source photography workflow application and RAW developer.
GIMP - GIMP is a freely distributed program for such tasks as photo retouching, image composition and image authoring.
GraphicsMagick - GraphicsMagick is the swiss army knife of image processing.
Hugin - An easy to use cross-platform panoramic imaging toolchain based on Panorama Tools.
ImageMagik - ImageMagick is a suite of command-line utilities for modifying and working with images.
imgp - Blazing fast terminal image resizer and rotator.
Luminance HDR - Luminance HDR is an open source graphical user interface application that aims to provide a workflow for HDR imaging.
Photivo - Photivo is a free and open source (GPL3) photo processor, handles your RAW and bitmap files (TIFF, JPEG, BMP, PNG and many more) in a non-destructive 16 bit processing pipe with gimp workflow integration and batch mode. It is intended to be used in a workflow together with digiKam/F-Spot/Shotwell and Gimp.
Piskel - Browser-based editor for animated sprites and pixel art. Available as offline application.
Pixelitor - Pixelitor is a free and open source image editing software that supports layers, layer masks, text layers, filters, multiple undo etc.
RawTherapee - A good looking but lesser known photo editing app.

Image Management

Digikam - DigiKam is an advanced digital photo management application for Linux.
ExifCleaner - Remove image metadata with drag and drop. Supports multi-core batch processing.
Feh - Lightweight and fast image viewer.
Fotocx - Fotocx is a free open source Linux program for image editing and collection management.
geeqie - Image viewer / photo collection browser. Successor of GQview.
gThumb - gThumb is an image viewer and browser (it also includes an importer tool for transferring photos from cameras).
gwenview - Simple yet powerful image viewer and management for KDE desktops.
Imagine - An open source image optimizer that can shrink the size of images with a minimal loss of quality.
nomacs - nomacs is an image viewer that is able to view nearly any image format, and has powerful renaming and sorting tools.
Ojo - A fast and pretty image viewer.
Phockup - Command line sorting tool to organize photos and videos from your camera in folders by year, month and day.
Photonic - Phototonic is image viewer and organizer.
quickviewer - Very fast image/comic viewer by using OpenGL.
rclip - AI-Powered Command-Line Photo Search Tool.
Shotwell - Shotwell is a photo manager for GNOME.

Miscellaneous

FreeCAD - FreeCAD is a free and opensource multiplatform 3D parametric modeler.
Handbrake - HandBrake is a tool for converting video from nearly any format to a selection of modern, widely supported codecs.
PhotoGIMP - A patch for optimizing GIMP 2.10+ for Adobe Photoshop users.
Photoshop CCv19 - Photoshop CC v19 installer for Gnu/Linux.
Photoshop-CC2022-Linux - Installer for Photoshop CC 2022 on linux with a GUI.
Potrace - Potrace is a tool for tracing a bitmap, which means, transforming a bitmap into a smooth, scalable image.
Radiance - Radiance - A Validated Lighting Simulation Tool.
Rapid Photo Downloader - Rapid Photo Downloader makes it easy to import photos from a camera or smartphone.

PSD, Sketch Inspection

Avocode - Avocode - Share and inspect Photoshop and Sketch designs in a heart beat.

Screen Recorder

asciinema - Terminal session recorder.
Green Recorder - A simple desktop recorder for Linux systems, supports recording audio and video on almost all Linux interfaces and Wayland display server on GNOME session.
Kazam - An easy to use and very intuitive screen recording program that will capture the content of your screen and record a video file that can be played by any video player that supports VP8/WebM video format.
Kooha - A simple screen recorder written with GTK. It allows you to record your screen and also audio from your microphone or desktop.
menyoki - Screen{shot,cast} and perform ImageOps on the command line.
OBS Studio - Free and open source software for video recording and live streaming. Download and start streaming quickly and easily on Windows, Mac or Linux. Share your gaming, art and entertainment with the world.
Peek - Simple animated GIF screen recorder with an easy to use interface.
Silentcast - Silentcast can create MKV screencasts and also output to an animated GIF.
SimpleScreenRecorder - SimpleScreenRecorder is a feature-rich screen recorder that supports X11 and OpenGL. It has a Qt-based graphical user interface.
Vokoscreen - A free, multilingual and easy to use screencast recorder with audio for Linux. It has many features.

Screenshot

Flameshot - Powerful yet simple to use screenshot software.
Ksnip - Ksnip is a Qt-based cross-platform screenshot tool that provides many annotation features for your screenshots.
ScreenCloud - ScreenCloud is an easy to use screenshot sharing tool consisting of a cross-platform client and a sharing website.
Shutter - Shutter is a feature-rich screenshot program for Linux based operating systems such as Ubuntu.
Spectacle - Spectacle is a simple application for capturing desktop screenshots.

Streaming

Boatswain - Control your Elgato Stream Deck devices.
ReadyMedia - Formerly known as MiniDLNA, ReadyMedia is a is a simple, lightweight media server software, with the aim of being fully compliant with DLNA/UPnP-AV clients. The MiniDNLA daemon serves media files (music, pictures, and video) to clients on a network such as smartphones, portable media players, televisions, other computers and some gaming systems.
VPupPr - VTuber application made with Godot 3.4.

Video Editor

Cinelerra-cv - Professional video editing and compositing environment.
Davinci Resolve - Revolutionary tools for editing, color correction, audio post and now visual effects, all in a single application.
Flowblade - A multitrack non-linear video editor for Linux.
Kdenlive - Kdenlive is a Non-Linear Video Editor, which is much more powerful than beginners’ (linear) editors.
Lightworks - Professional non-linear video editing program with a free version available.
Olive - Olive is a free non-linear video editor aiming to provide a fully-featured alternative to high-end professional video editing software.
OpenShot - OpenShot is a free, simple-to-use, feature-rich video editor for Linux.
Pitivi - A free video editor with a beautiful and intuitive user interface, a clean codebase and a fantastic community.
Shotcut - Shotcut is a free, open source, cross-platform video editor with support for hundreds of audio and video formats and codecs and a sleek, intuitive interface.
Vidcutter - Cross-platform Qt5 based app for quick and easy video trimming/splitting and merging/joining for simple quick edits.

Internet

Browser

Brave - Brave is a fast, good desktop browser for macOS, Windows, and Linux.
Chrome - A popular Web Browser with a lot of plugins/apps.
Chromium - Chromium is an open-source browser project that aims to build a safer, faster, and more stable way for all users to experience the web.
Falkon - Falkon aims to be a lightweight web browser available through all major platforms.
Firefox - A popular Web Browser with a lot of plugins/apps.
GNOME Web - GNOME Web (codename: Epiphany) is a GNOME web browser based on the WebKit rendering engine.
IceCat - GNU version of Firefox built for privacy, using only free software and free of trademarks.
LibreWolf - Fork of Firefox, with the primary goals of privacy, security and user freedom.
Microsoft Edge - Microsoft Edge is a cross-platform web browser created and developed by Microsoft.
Midori - A lightweight free browser that runs well on low spec systems.
Min - A smarter, faster web browser.
Mullvad Browser - The Mullvad Browser is a privacy-focused web browser developed in a collaboration between Mullvad VPN and the Tor Project. It’s designed to minimize tracking and fingerprinting.
Opera - Opera browser is everything you need to do more on the web.
QuteBrowser - A keyboard-driven, vim-like browser based on PyQt5.
Tor - Tor is free software and an open network that helps you defend against traffic analysis, a form of network surveillance that threatens personal freedom and privacy.
ungoogled-chromium - ungoogled-chromium is Google Chromium, sans dependency on Google web services.
Vivaldi - A new and rising browser with a lot of customizations.
Waterfox - Fork of Firefox. Waterfox gives you a sane way to browse the web. Built with you, the user, in mind.
Wavebox - A feature-rich Chromium browser that’s built for productive working across Google Workspaces, Microsoft Teams, ClickUp, Monday, Atlassian, Asana, AirTable, Slack, and every other web app you use to get work done.
Yandex - Fast and convenient browser.

Supportive Tool

Clipgrab - A friendly downloader for YouTube and other sites.
Parabolic - Download web video and audio.
spotDL - Download your Spotify playlists and songs along with album art and metadata (from YouTube if a match is found).
Video Downloader - Download videos from websites like YouTube and many others (based on yt-dlp).
youtube-dl-gui - A cross-platform GUI for youtube-dl made in Electron and node.js
ytDownloader - A cross-platform GUI for yt-dlp with advanced options and a modern UI.
Zerotier - Zerotier is a program that creates a Virtual Network for only your devices with end to end encryption over the internet. By default Zerotier will manage your virtual network but you can switch to a self-managed network if you prefer.

Web Service Client

Akregator - A KDE Feed Reader.
Choqok - Choqok is a Qt5 client for Twitter, GNU Social, Friendica and Pump.IO.
FeedTheMonkey - FeedTheMonkey is a desktop client for TinyTinyRSS.
Fluent Reader - Modern desktop RSS reader built with Electron, React, and Fluent UI.
FreeTube - FreeTube is a YouTube client for Windows, Mac, and Linux built around using YouTube more privately.
Kaku - An open source youtube music player for Ubuntu.
NewsFlash - NewsFlash is a program designed to complement an already existing web-based RSS reader account.
PlasmaTube - Kirigami-based YouTube client for Linux Desktop and Mobile with built-in ad-blocking and privacy features.
Popcorn Time - Watch torrent movies instantly.
RSS Guard - Feed reader which supports RSS/ATOM/JSON and many web-based feed services.
Streamlink Twitch GUI - A multi platform Twitch.tv browser for Streamlink.
ytfzf - Terminal Youtube/Odysee client with thumbnails.

Office

Accounting

GnuCash - GnuCash is a free software accounting program that implements a double-entry bookkeeping system. It was initially aimed at developing capabilities similar to Intuit, Inc.’s Quicken application, but also has features for small business accounting.
hledger - Easy-to-use command-line/curses/web plaintext accounting tool.
HomeBank - HomeBank is a free software that will assist you to manage your personal accounting.
KMyMoney - KMyMoney is the personal finance manager by KDE. Its operation is similar to Microsoft Money and Quicken.
Skrooge - A personal finances manager, powered by KDE.

Office Suites

Caligra Office - Offers a comprehensive set of 8 applications which satisfies the office, graphics and management needs.
LibreOffice - Arguably the most popular office suite for Linux, it is very heavily developed and widely known.
OnlyOffice - An office suite that charges for a cloud version of itself, but is free for other uses.
WPS office - A popular office suite in China, but is fully translated and functions well in English.

LaTeX

GNOME LaTeX - GNOME LaTeX is a LaTeX editor for the GNOME desktop.
Gummi - Simple latex editor with templates, spell check, and wizards.
LyX - Mature document editor that renders into LaTeX.
TexLive - TeX Live is an easy way to get up and running with the TeX document production system.
TeXmacs - Free scientific text editor, inspired by TeX and GNU Emacs. WYSIWYG editor and CAS-interface.
Texmaker - Free cross-platform LaTeX editor.
TeXstudio - TeXstudio’s goal is to make writing LaTeX documents as easy and comfortable as possible.
TeXworks - TeXworks is an environment for authoring TeX (LaTeX, ConTeXt, etc) documents, with a Unicode-based, TeX-aware editor, integrated PDF viewer, and a clean, simple interface accessible to casual and non-technical users.

Markdown

Ghost Writer - A distraction-free Markdown editor for Windows and Linux.
Marker - Marker is a markdown editor for linux made with GTK+-3.0.
MarkText - MarkText is a free and open-source realtime preview markdown editor which support both CommonMark Spec and GitHub Flavored Markdown Spec. It is a concise text editor, dedicated to improving your writing efficiency.
Remarkable - A capable markdown editor that uses a variant of GitHub Flavored Markdown (GFM).
Retext - A Simple but powerful editor for Markdown and reStructuredText.
Typora - A Minimal markdown editor.

Novel Writing

Bibisco - A novel writing software with focus on ideas and characters.
Manuskript - Manuskript is a perfect tool for those writer who like to organize and plan everything before writing.
Skribisto - Software for writers
Scribus - Scribus is a desktop publishing application designed for layout, typesetting, and preparation of files for professional-quality image-setting equipment. It can also create animated and interactive PDF presentations and forms.
Trelby - Trelby is simple, fast and elegantly laid out to make screenwriting simple.

Productivity

Automation

Actiona - An utility for task automation Ubuntu/Linux. (Previously Actionaz)
Autokey - A desktop automation utility for Linux allows you to manage collection of scripts and phrases, and assign abbreviations and hotkeys to these.
Blanket - Improve focus and increase your productivity by listening to different sounds.
Caffeine - Prevents Ubuntu from automatically going to sleep.
espanso - Cross-platform Text Expander written in Rust.
Max Auto Clicker - Automate your mouse clicks easily with this awesome cross-platform application (for Windows and Linux Desktops).
XClicker - A blazing fast gui autoclicker for linux.

Dock

Cairo-Dock - Cairo-Dock is a desktop interface that takes the shape of docks, desklets, panel, etc.
Docky - Docky is a full fledged dock application that makes opening common applications and managing windows easier and quicker.
Latte Dock - Latte is a dock based on plasma frameworks that provides an elegant and intuitive experience for your tasks and plasmoids.
Plank - Plank is meant to be the simplest dock of apps on the planet.

Local Search

Albert - An awesome keyboard launcher for the Linux desktop.
ANGRYsearch - Linux file search, instant results as you type.
Catfish - Catfish is a versatile file searching tool.
Cerebro - Open-source productivity booster with a brain / MacOS-Spotlight alternative.
fsearch - A fast file search utility for Unix-like systems based on GTK+3. Wildcard support, RegEx support, Filter support.
Plotinus - A searchable command palette in every modern GTK+ application.
Synapse - Synapse is a semantic launcher written in Vala that you can use to start applications as well as find and access relevant documents and files by making use of the Zeitgeist engine.
Ulauncher - Ulauncher is a fast application launcher for Linux. It’s is written in Python, using GTK+.

Miscellaneous

Ambient Noise - An ambient noise generator for Linux.
bcal - Perform storage conversions and calculations.
CopyQ -CopyQ is advanced clipboard manager with editing and scripting features.
f.lux - A program that reddens your display to help you sleep better.
Gpick - Gpick allows you to sample any color from anywhere on your desktop, and it also provides some other advanced features!
pdd - Tiny date, time diff calculator.
Redshift - Redshift adjusts the color temperature of your screen according to your surroundings. This may help your eyes hurt less if you are working in front of the screen at night.
SpeedCrunch - A nice, open source, high-precision scientific calculator.
Undistract me - Notifies you when long-running terminal commands complete.
Xmind - A mind mapping tool.

Note Taking

Anytype - A multi-platform, open-source, local-first, personal knowledge base tool.
Basket Note Pads - This multi-purpose note-taking application helps you to easily take all sort of notes.
Beaver Notes - A multi-platform, open-source, privacy-first, community-driven, note-taking app and personal knowledge manager.
Boostnote - Boostnote is an open source note-taking app made for programmers just like you.
Cherrytree - A hierarchical note taking application, featuring rich text and syntax highlighting, storing data in a single xml or sqlite file.
Inkdrop - The Note-Taking App for Markdown Lovers with simple interface, seemless security and powerful APIs.
Joplin - A note taking and to-do application with synchronization capabilities for Windows, macOS, Linux, Android and iOS.
Logseq - Logseq is a privacy-first, open-source knowledge base that works on top of local plain-text Markdown and Org-mode files. Use it to write, organize and share your thoughts, keep your to-do list, and build your own digital garden.
Mindforger - Thinking notebook and Markdown editor.
NixNote - An open source client for Evernote.
Notes - A clean simple note taking app for Linux.
Notesnook - A fully open source & end-to-end encrypted note taking alternative to Evernote.
Obsidian - Obsidian is a powerful knowledge base on top of a local folder of plain text Markdown files.
OneNote - Linux Electron OneNote.
Org mode - Org mode is for keeping notes, maintaining TODO lists, planning projects, and authoring documents with a fast and effective plain-text system.
Planify - Task manager with Todoist and Nextcloud support designed for GNU/Linux
QOwnNotes - QOwnNotes is a plain-text file notepad and todo-list manager with markdown support and ownCloud / Nextcloud integration.
Simplenote - A Cross platform notetaking app and Evernote competitor.
Springseed - Simple and beautiful note taking app for daily user.
Standard Notes - Standard Notes is an end-to-end encrypted note-taking app for digitalists and professionals. Capture your notes, files, and life’s work all in one secure place.
Standard Unix Notes - GPG Encrypted Notes/Notebook manager for BSD/Linux
Stickynote - Sticky notes on your Linux desktop.
Tomboy - Tomboy is a desktop note-taking application which is simple and easy to use.
Trilium Notes - Trilium Notes is a hierarchical note taking application with focus on building large personal knowledge bases.
Turtl - The secure, collaborative notebook.
Typora - A minimalistic Markdown viewer and editor.
Tusk - Refined Evernote desktop app.
WizNote - A cross-platform cloud based note-taking client.

Time and Task

Alarm Clock - Alarm Clock is a fully-featured alarm clock for your GNOME panel or equivalent.
Break Timer - A break timer application for GNOME.
BreakTimer - BreakTimer is a cross platform desktop application with nice UI for managing and enforcing periodic breaks.
calcurse - A calendar and scheduling application for the command line.
California - Complete Calendar app replacement which uses natural language for creating events.
Everdo - TODO list and Getting Things Done® app for all platforms. Beautiful, powerful, not SaaS, free version available.
GNOME Pomodoro - A full-featured pomodoro timer for GNOME.
Go For It - Go For It! is a simple and stylish productivity app, featuring a to-do list, merged with a timer that keeps your focus on the current task.
Kalendar - Kalendar is a calendar application that allows you to manage your tasks and events.
Pomodone App - PomoDoneApp is the easiest way to track your workflow using Pomodoro technique®, on top of your current task management service.
RSIBreak - RSIBreak takes care of your health and regularly breaks your work to avoid repetitive strain injury.
sleek - Cross platform todo manager based on the todo.txt syntax.
Solanum - A pomodoro timer for the GNOME desktop.
Super Productivity - The simple free flexible ToDo List / Time Tracker / personal Jira and Github Task Manager.
Taskade - Real-time organization and collaboration tool for getting things done. Taskade is a unified workspace for team tasks, notes, with integrated video chat available cross-platform and free to use.
Taskbook - Tasks, boards & notes for the command-line habitat.
TaskWarrior - Taskwarrior is Free and Open Source Software that manages your TODO list from the command line.
Todo.txt - Todo.txt is a set of focused editors which help you manage your tasks with as few keystrokes and taps possible.
Todoist - Unofficial client of Todoist, the cross-platform to-do manager with mobile apps, great UI and has some optional premium features.

Time and Usage Tracker

ActivityWatch - ActivityWatch is an app that automatically tracks how you spend time on your devices.
Time Cop - A time tracking app that respects your privacy and gets the job done without getting too fancy.
Toggl Track - Simple and Intuitive Time Tracking Software with cloud sync.

Brightness - Brightness indicator for Ubuntu.
My Weather Indicator - Weather indicator and widget for Ubuntu.
Recent Noti - An indicator for recent notification.
Yktoo Sound Switcher Indicator - Sound input/output selector indicator for Ubuntu/Unity.

Proxy

mitmproxy - mitmproxy is a free and open source interactive HTTPS proxy.
Privoxy - Privoxy is a non-caching web proxy with advanced filtering capabilities for enhancing privacy, modifying web page data and HTTP headers, controlling access, and removing ads and other obnoxious Internet junk.
ProxyChains - A tool that forces any TCP connection made by any given application to follow through proxy like TOR or any other SOCKS4, SOCKS5 or HTTP(S) proxy.
Shadowsocks - A secure socks5 proxy, designed to protect your Internet traffic.

Security

Boot Integrity

Mortar - Mortar allows for convenient automatic unlocking of LUKS-encrypted disks without sacrificing security through the use of Secureboot and TPM validation. Mortar aims to be distribution-agnostic.

Compartmentalization

Atoms - Easily manage Linux Chroot(s) and Containers with Atoms.
Distrobox - Use any linux distribution inside your terminal.
Firejail - Firejail is a SUID program that reduces the risk of security breaches by restricting the running environment of untrusted applications using Linux namespaces and seccomp-bpf.
GNOME Boxes - Virtualization made simple.
KVM - KVM (for Kernel-based Virtual Machine) is a full virtualization solution for Linux on x86 hardware containing virtualization extensions (Intel VT or AMD-V).
ops - OPS is a tool that builds, runs and deploys ordinary linux applications as unikernels.
Pods - Interact with Podman using an intuitive desktop application.
Quickemu - Quickly create and run optimised Windows, macOS and Linux desktop virtual machines.
Toolbx - Tool for containerized command line environments on Linux.
VirtualBox - VirtualBox is a general-purpose full virtualizer for x86 hardware, targeted at server, desktop and embedded use.
Virtual Machine Manager - Desktop tool for managing virtual machines via libvirt.
VMware Workstation Player - Easily run multiple operating systems as virtual machines on your Windows or Linux PC with VMware Workstation Player.

Firewall

FireHOL - Linux firewall (iptables) manager for humans.
Firewalld - Firewalld provides a dynamically managed firewall with support for network or firewall zones to define the trust level of network connections or interfaces.
GuFW - One of the easiest firewalls in the world of Linux.
OpenSnitch - OpenSnitch is a GNU/Linux interactive application firewall inspired by Little Snitch.
Portmaster - Portmaster is a free and open-source application firewall that does the heavy lifting for you. Restore privacy and take back control over all your computer’s network activity.

Network Analysis

Tcpdump - TCP Debugging/Capture Tool.
Termshark - A terminal UI for tshark, inspired by Wireshark.
Wireshark - Wireshark is the world’s foremost network protocol analyzer. It lets you see what’s happening on your network at a microscopic level. It is the de facto (and often de jure) standard across many industries and educational institutions.

Password Manager

1Password - 1Password is the easiest way to store and use strong passwords. Log in to sites and fill forms securely with a single click.
AuthPass - Password Manager based on Flutter for all platforms.
Bitwarden - A cross-platform password management service which also support self-hosting.
Buttercup - Buttercup is a free, open-source and cross-platform password manager, built on NodeJS with Typescript.
Enpass - Enpass makes your life easy by securely managing your passwords and important information.
gopass - The slightly more awesome standard unix password manager for teams.
KeePass - Windows focused password manager, with some cross platform support through Mono.
KeePassXC - Cross platform password manager. A Community-maintained fork of KeePassX.
Keeper - The leading cybersecurity platform that protects passwords, secrets and access to infrastructure.
KeeWeb - Free cross-platform password manager compatible with KeePass.
LastPass - LastPass is a crossplatform freemium password management service that stores encrypted passwords in private accounts.
NordPass - A secure and simple password manager for a stress-free online experience. Optimized for Linux devices.
Padloc - A modern, open source password manager for individuals and teams.
Pass - The standard Unix password manager.
Password Safe - Password Safe allows you to safely and easily create a secured and encrypted user name/password list.
Psono - Psono is an open source and self hosted password manager to help keep your data safe.
Secrets - Secrets is a password manager which integrates perfectly with the GNOME desktop and provides an easy and uncluttered interface for the management of password databases.
VaultWarden - Unofficial Bitwarden compatible server written in Rust, formerly known as bitwarden_rs.

Reverse Engineering

cutter - Cutter’s goal is to be an advanced FREE and open-source reverse-engineering platform while keeping the user experience at mind.
edb-debugger - edb is a cross platform AArch32/x86/x86-64 debugger. It was inspired by Ollydbg.
GDB - GDB, the GNU Project debugger, allows you to see what is going on `inside’ another program while it executes.
ghidra - A software reverse engineering (SRE) suite of tools developed by NSA’s Research Directorate in support of the Cybersecurity mission.
radare2 - A free/libre toolchain for easing several low level tasks like forensics, software reverse engineering, exploiting, debugging.

Other

Authenticator - Simple application for generating Two-Factor Authentication Codes.
ClamAV - ClamAV is an open source antivirus engine for detecting trojans, viruses, malware & other malicious threats.
Cryptomator - Multi-platform transparent client-side encryption of your files in the cloud.
Decoder - Fancy yet simple QR Codes scanner and generator.
Fail2ban - Fail2ban scans log files (e.g. /var/log/apache/error_log) and bans IPs that show the malicious signs – too many password failures, seeking for exploits, etc.
FireQoS - Linux QoS (tc) manager for humans.
GnuPG - GnuPG allows to encrypt and sign your data and communication, features a versatile key management system as well as access modules for all kinds of public key directories.
IPrange - A very fast command line utility for processing IP lists (merge, compare, exclude, etc).
spy - Linux kernel mode debugfs keylogger.
Lynis - Security auditing tool for Linux, macOS, and UNIX-based systems. Assists with compliance testing (HIPAA/ISO27001/PCI DSS) and system hardening. Agentless, and installation optional.
Obfuscate - Obfuscate lets you redact your private information from any image.
OpenSSH - OpenSSH Secure Shell Server and Client.
OWASP ZAP - OWASP Zed Attack Proxy (ZAP) web security testing tool.
Seahorse - A GNOME frontend for GnuPG.
Sirikali - A Qt/C++ GUI front end to cryfs,gocryptfs,securefs,ecryptfs and encfs.
Uktools - Keep your system up-to-date with last kernel available. Possibility to clean old kernel too.
Update-IPsets - A manager for all cybercrime IP feeds that can download, convert and install netfilter ipsets.
VeraCrypt - VeraCrypt is a free open source disk encryption software for Windows, Mac OSX and Linux.

Cloud Drive

Dropbox - Dropbox is a free service that lets you bring your photos, docs, and videos anywhere and share them easily.
MEGA - Easy automated syncing between your computers and your MEGA cloud drive.
nextCloud - An actively maintained fork of ownCloud, a suite of client-server software for creating and using file hosting services.
ownCloud - The goal of ownCloud is to give you access to your files wherever you are.
Seafile - Seafile is an enterprise file hosting platform with high reliability and performance. Put files on your own server. Sync and share files across different devices, or access all the files as a virtual disk.

Download Manager

aria2 - aria2 is a lightweight multi-protocol & multi-source command-line download utility.
ArrowDL - ArrowDL is a mass download manager for Windows, Mac OS X and Linux. It helps you to select, organize, prioritize and run your downloads in parallel.
Flareget - Full featured, multi-threaded download manager and accelerator.
Free Download Manager - Free Download Manager is a powerful modern cross-platform download accelerator and organizer for Windows, Mac and Linux.
JDownloader - JDownloader is a free download management tool with a huge community of developers that makes downloading as easy and fast as it should be.
KGet - KGet is a versatile and user-friendly download manager.
Motrix - Motrix is a full-featured clean and easy to use interface download manager that supports downloading HTTP, FTP, BitTorrent, Magnet, etc.
uGet - A download manager that can monitor the clipboard for downloadable links, and can create a list of downloads, and run them in parallel.
Xtreme Download Manager - A good download manager with fresh UI for Linux.

airpaste - A 1-1 network pipe that auto discovers other peers using mdns.
croc - Easily and securely send things from one computer to another.
CrossFTP - CrossFTP makes it extremely simple to manage the FTP related tasks.
D-lan - A free LAN file sharing software.
Filezilla - The free FTP solution.
NitroShare - Cross-Platform network file transfer application.
OnionShare - Securely and anonymously share a file of any size.
PushBullet for desktop - The missing Desktop application for Pushbullet.
Quazaa - A cross platform multi-network peer-to-peer (P2P) file-sharing client.
SpiderOak - Real-time collaboration for teams and businesses that care about privacy.
Syncthing - Syncthing replaces proprietary sync and cloud services with something open, trustworthy and decentralized.
Warp - Warp allows you to securely send files to each other via the internet or local network by exchanging a word-based code.
Warpinator - Share files across LAN.
Wormhole - Get arbitrary-sized files and directories (or short pieces of text) from one computer to another safely.

Remote Desktop

AnyDesk - AnyDesk ensures secure and reliable remote desktop connections for IT professionals and on-the-go individuals alike.
Barrier - Share mouse and keyboard over the local network.
Connections - Connections allows you to connect to and use other desktops. This can be a great way to access content or software on a different desktop operating system.
PushBullet - Pushbullet connects your devices, making them feel like one.
Rustdesk - Open source virtual / remote desktop infrastructure for everyone! The open source TeamViewer alternative.
Teamviewer - PC remote control/remote access software, free for personal use.

Torrent Client

Deluge - Deluge is a lightweight, Free Software, cross-platform BitTorrent client.
Fragments - Fragments is an easy to use BitTorrent client for the GNOME desktop environment.
KTorrent - KTorrent is a BitTorrent application by KDE which allows you to download files using the BitTorrent protocol.
qBittorent - The qBittorrent project aims to provide a Free Software alternative to µTorrent.
qBittorrent Enhanced Edition - qBittorrent Enhanced is fork of qBittorrent that features peer whitelist/blacklist, auto update public tracker list and more.
Tixati - Freeware, advanced featured torrent client, a web user interface is included.
Transmission - Simple, lightweight, multi-platform torrent client.
Transmission Remote GUI - Transmission Remote GUI is a feature rich cross platform front-end to remotely control a Transmission Bit-Torrent client daemon via its RPC protocol.
Vuze - Vuze is a BitTorrent client used to transfer files via the BitTorrent protocol.
Web Torrent Desktop - Web Torrent Desktop is for streaming torrents which connects to both BitTorrent and WebTorrent peers.

Terminal

Alacritty - A cross-platform, GPU-accelerated terminal emulator.
Black Box - A beautiful GTK 4 terminal.
Console - A simple user-friendly terminal emulator for the GNOME desktop.
Contour - Contour is a modern and actually fast, modal, virtual terminal emulator, for everyday use. It is aiming for power users with a modern feature mindset.
Cool Retro Term - A good looking terminal that mimicks the old cathode display.
eDEX-UI - eDEX-UI is a fullscreen, cross-platform terminal emulator and system monitor that looks and feels like a sci-fi computer interface.
GNOME Terminal - A widely preinstalled terminal emulator in Linux world.
Guake - Guake is a top-down terminal for GNOME.
Hyper - A terminal built on web technologies.
Kermit - A VTE-based, simple and froggy terminal emulator.
Kitty - Cross-platform, fast, feature full, OpenGL based terminal emulator.
Konsole - An alternative terminal emulator for KDE desktop environment.
RXVT - A terminal emulator for X11, a popular replacement for the standard ‘xterm’.
rxvt-unicode - rxvt-unicode is a fork of the well known terminal emulator.
Sakura - Simple but powerful libvte based terminal emulator, supporting utf-8 and input methods as provided by gtk+ and pango libraries.
st - st is a simple terminal implementation for X.
Terminator - Feature filled terminal emulator that supports tabs and grids.
Tabby - Modern, highly configurable terminal app based on web technologies.
Terminology - The pretty and lightweight terminal from the Enlightenment Desktop, it’s highly configurable, it works in X11, under a Wayland compositor and even directly in the framebuffer on Linux. Replace your boring text-mode VT with a graphical one that requires no display system.
Termit - Simple terminal emulator based on vte library, extensible via Lua.
Termius - Cross-platform terminal with built-in SSH and Telnet.
Tilda - A Gtk based drop down terminal for Linux and Unix.
Tilix - A tiling terminal emulator for Linux using GTK+ 3.
Twin - Fast, lightweight text-mode window environment with mouse support. Enables multiple terminals in a single Linux console, terminal or X11 window. It can be detached (keeps running in background) and reattached to a different console, terminal or X11 server. Works on Linux, Mac OS X and BSD.
Visidata - A terminal spreadsheet multitool for discovering and arranging data.
Wave Terminal - Wave is an open-source, AI-native terminal built for seamless developer workflows with inline rendering, a modern UI, and persistent sessions.
WezTerm - A GPU-accelerated cross-platform terminal emulator and multiplexer written by @wez and implemented in Rust.
Xterm - The Xterm program is a terminal emulator for the X Window System. It provides DEC VT102 and Tektronix 4014 compatible terminals for programs that can’t use the window system directly.
Yakuake - A Quake-style terminal emulator based on KDE Konsole technology.
Zellij - A terminal workspace and multiplexer. Letting you open several panes and tabs to run different programs, share a terminal session with others and more. Very user friendly and intuitive.

Text Editors

Integrated Development Environment inspired / Common User Access based

Bluefish - Bluefish is a powerful editor targeted towards programmers and web developers, with many options to write websites, scripts and programming code.
Brackets - A modern text editor that understands web design.
CudaText - CudaText is a cross-platform text editor, written in Object Pascal.
Fleet - The Code Editor and IDE for Any Language.
Geany - Geany is a text editor using the GTK+ toolkit with basic features of an integrated development environment. It was developed to provide a small and fast IDE, which has only a few dependencies from other packages.
Gedit - Gedit is the GNOME text editor. While aiming at simplicity and ease of use, gedit is a powerful general purpose text editor.
GNOME Builder - Powerful IDE for modern C / C++ / Bash / JavaScript development, made by Gnome Team. One of the best IDE for C/C++ development (Cmake integrated).
Helix - A post-modern modal text editor.
Kate - Kate is a multi-document editor part of KDE since release 2.2.
Komodo Edit - Free and open source multilanguage development environment.
Lapce - Lightning-fast and Powerful Code Editor written in Rust.
Lighttable - The next generation code editor! Support live coding.
Pulsar - A Community-led Hyper-Hackable Text Editor, Forked from Atom, built on Electron.
Sublime - A very capable text editor with advanced search capabilities, and many powerful plugins to improve its functionality.
Textadept - Minimalist text editor for programmers. Textadept is extensible with Lua programming language.
VSCode - Visual Studio Code is a lightweight but powerful source code editor which runs on your desktop and is available for Windows, OS X and Linux. It comes with built-in support for JavaScript, TypeScript and Node.js and has a rich ecosystem of extensions for other languages (C++, C#, Python, PHP, Golang) and runtimes.
VSCodium - Binary releases of VS Code without MS branding/telemetry/licensing.
ZeroBrane Studio - A mature, lightweight, cross-platform Lua IDE with modern development features.

Emacs - An extensible, customizable, free/libre text editor — and more.
Kakoune - Kakoune code editor - Vim inspired. Faster as in less keystrokes. Multiple selections. Orthogonal design. Has a strong focus on interactivity.
LunarVim - LunarVim is an opinionated, extensible, and fast IDE layer for Neovim.
Neovim - Neovim is a fork of Vim aiming to improve user experience, plugins, and GUIs.
NvChad - An attempt to make neovim cli functional like an IDE while being very beautiful and blazing fast.
Spacemacs - A community-driven Emacs distribution.
SpaceVim - A community-driven modular vim distribution.
Vim - Vim is an advanced text editor that seeks to provide the power of the de-facto Unix editor ‘Vi’, with a more complete feature set. It’s useful whether you’re already using vi or using a different editor.

Other editors

Micro - Micro is a terminal-based text editor that aims to be easy to use and intuitive, while also taking advantage of the full capabilities of modern terminals.
Nano - GNU Nano is a text editor which aims to introduce a simple interface and intuitive command options to console based text editing.
KWrite - KWrite is a text editor by KDE, based on the Kate’s editor component.
Notepadqq - Notepadqq is a Notepad++-like editor for the Linux desktop.
Notepad Next - A cross-platform, reimplementation of Notepad++.

Utilities

Disk Utilities

Brasero - A capable CD/DVD burner.
Clonezilla - Clonezilla is a partition and disk imaging/cloning program similar to True Image® or Norton Ghost®.
DBAN - Delete information stored on hard disk drives (HDDs) in PC laptops, desktops or servers.
Diskonaut - A disk space visualizer and navigator for the terminal.
Duc - Duc, a library and suite of tools for indexing, and visualizing inspecting disk usage.
Etcher - Flash OS images to SD cards & USB drives, safely and easily.
GParted - Disk Partition utility for Linux.
KDiskMark - A simple open-source disk benchmark tool for Linux distros, similar to CrystalDiskmark on Windows.
KFloppy - Graphical utility to format 3.5” and 5.25” floppy disks.
MultiBootUSB - MultiBootUSB allows you to install multiple live linux on a USB disk.
Popsicle - Popsicle is a Linux utility for flashing multiple USB devices in parallel, written in Rust.
Unetbootin - UNetbootin allows you to create bootable Live USB drives for Ubuntu and other Linux distributions. You can either let UNetbootin download one of the many distributions supported out-of-the-box for you, or supply your own Linux .iso file.
Ventoy - A new bootable USB solution.

System Maintenance

Aptik - A tool for you to organize your Favorite PPAs and manage Packages Easily.
AppImageLauncher - Helper application for Linux distributions serving as a kind of “entry point” for running and integrating AppImages.
AppImage Pool - A simple, modern AppImageHub Client.
bauh - Graphical user interface for managing your Linux applications. Supports AppImage, Arch packages (including AUR), Debian packages, Flatpak, Snap and native Web applications.
BleachBit - BleachBit quickly frees disk space and tirelessly guards your privacy. Free cache, delete cookies, clear Internet history, shred temporary files, delete logs, and more.
dconf Editor - Simple configuration storage system - graphical editor.
Nala - Nala is a front-end for libapt-pkg. Specifically we interface using the python-apt api.Especially for newer users it can be hard to understand what apt is trying to do when installing or upgrading.
Nix - Nix is a powerful package manager for Linux and other Unix systems that makes package management reliable and reproducible.
Paru - Paru is your standard pacman wrapping AUR helper with lots of features and minimal interaction.
rmlint - rmlint finds space waste and other broken things on your filesystem and offers to remove it.
Stacer - The most well known Ubuntu System Optimizer.
Synaptic - Synaptic is a graphical package management program for apt.
UbuntuCleaner - Ubuntu Cleaner is a tool that makes it easy to clean your Ubuntu system.
Yay - Yet another Yogurt - An AUR Helper written in Go.

System Monitoring

bandwhich - Terminal bandwidth utilization tool.
CoreCtrl - CoreCtrl is a Free and Open Source GNU/Linux application that allows you to control with ease your computer hardware using application profiles. It aims to be flexible, comfortable and accessible to regular users.
CPU-G - Easy monitoring the battery life of your Ubuntu laptop.
cpupower-gui - Graphical program to easily change the frequency limits and governors of the CPU, similar to cpupower.
CPU-X - CPU-X is a Free software that gathers information on CPU, motherboard and more.
Filelight - Filelight is an application to visualize the disk usage on your computer by showing folders using an easy-to-understand view of concentric rings. Filelight makes it simple to free up space!
GD map - A tool to visualize disk usage.
indicator-cpufreq - It provides the same functionality as the GNOME CPU frequency applet, but doesn’t require GNOME panel and works under Unity.
indicator-multiload - Graphical system load indicator for CPU, ram, etc.
Indicator-SysMonitor - An Application Indicator showing cpu temperature, memory, network speed, cpu usage, public IP address and internet connection status.
Ncdu - A disk usage analyzer with an ncurses interface.
SysMonTask - Linux system monitor with the compactness and usefulness of windows task manager to allow higher control and monitoring.
NetData - Next-gen web based real-time performance and health monitoring for physical and virtual servers, containers and IoT devices. It is also a distributed statsd server with automatic visualization for APM (applications performance monitoring).
Systemload - A program that shows current system load in a status bar.
vnStat - vnStat is a console-based network traffic monitor that uses the network interface statistics provided by the kernel as information source. This means that vnStat won’t actually be sniffing any traffic and also ensures light use of system resources regardless of network traffic rate.

Other

Alien Package Converter - Package converter. Converts between RPM, DPKG, SLP, and TGZ package formats.
Angry IP Scanner - Fast and friendly network scanner.
AntiMicroX - Graphical program used to map keyboard buttons and mouse controls to a gamepad. Useful for playing games with no gamepad support.
BlueZ - Official Linux Bluetooth protocol stack.
Cheat - Cheat allows you to create and view interactive cheatsheets on the command-line.
Convertall - A program that can convert many units of measurement to other units.
Curlew - A GTK media converter for the GNOME desktop.
deb-get - Deb-get makes is easy to install and update .debs published in 3rd party apt repositories or made available via direct download on websites or GitHub release pages.
dmenu - dmenu is a dynamic menu for X, originally designed for dwm. It manages large numbers of user-defined menu items efficiently.
Droidcam - DroidCam turns your Android device into a wireless webcam for your PC.
EasyStroke - Easystroke is a gesture-recognition application for X11.
Emoji Keyboard - Virtual keyboard-like emoji picker for Linux.
fast-cli - Test your download and upload speed using fast.com.
Flatseal - Flatseal is a graphical utility to review and modify permissions from your Flatpak applications.
FreeRDP - FreeRDP is a free implementation of the Remote Desktop Protocol (RDP).
Glow - Render markdown on the CLI, with pizzazz! 💅🏻
GNOME-Pie - The circular app launcher for Linux desktops.
GPT4All - gpt4all: an ecosystem of open-source chatbots trained on a massive collections of clean assistant data including code, stories and dialogue
Gramps - Research, organize and share your family tree with Gramps.
GSConnect - KDE Connect implementation for GNOME.
HydraPaper - Wallpaper manager with multi monitor support.
KDE-Connect - A tool, that allows one to integrate the Linux desktop with an Android smartphone and can be used to send files to and from the phone and the linux desktop, use the phone as a trackpad, control the desktop media player using the phone, and lots more.
Keynav - Keynav is a piece of an on-going experiment to make pointer-driven interfaces easier and faster for users to operate. It lets you move the pointer quickly to most points on the screen with only a few keystrokes.
Komorebi - Komorebi is a background manager for all Linux platforms, provides fully customizable backgrounds that can be tweaked at any time.
mapscii - MapSCII is a Braille & ASCII world map renderer for your console.
Mosh - Mosh is a Remote terminal application that allows roaming, supports intermittent connectivity, and provides intelligent local echo and line editing of user keystrokes.
Nmap - Nmap is a free, open-source tool for network exploration, management, and security auditing.
Nativefier - Make any web page a desktop application.
PeaExtractor A utility designed to unzip files and be as frictionless as possible, and easy to use as possible.
Peazip - A utility to unzip any of a huge variety of compression formats.
Pi-Hole - Network-wide ad blocking via your own Linux hardware, using DNS filtering and re-direction Pi-Hole can block ads on a whole network, so Smartphones and Game Consoles can benefit from it in addition to computers.
PipeWire - PipeWire is a project that aims to greatly improve handling of audio and video under Linux.
PlexyDesk - Plexydesk supports multiple widget workspaces/desktops on Linux.
Powertop - A tool that can help diagnose issues with power consumption in Linux.
Pulse Audio - Improve Linux Audio with customized Profiles.
Remmina - A feature-rich remote desktop application for Linux and other UNIXes.
rofi - A window switcher, Application launcher and dmenu replacement.
scrcpy - Display and control your Android device.
Solaar - Logitech Unifying Receiver peripherals manager for Linux.
Sushi - Sushi is a quick previewer for Nautilus, the GNOME desktop file manager.
Touche - Easily configure your touchpad and touchscreen multi-touch gestures using Touchégg with this GTK graphical user interface.
TightVNC - A Free, Lightweight, Fast and Reliable Remote Control / Remote Desktop Software.
TLP - An application that can help optimize battery life on Linux.
TMSU - TMSU lets you tags your files and then access them through a nifty virtual filesystem from any other application.
Trimage - A cross-platform tool for losslessly optimizing PNG and JPG files.
Ubunsys - An application designed to allow you to change in-depth system features without the command line.
unsnap - Quickly migrate from using snap packages to flatpaks.
Upscayl - Free and Open Source AI Image Upscaler.
USB network gate - Allows you to share USB ports over a Network on Linux.
Variety - Variety is an open-source wallpaper changer for Linux, packed with great features, yet slim and easy to use.
Wayland - Wayland is intended as a simpler replacement for X, easier to develop and maintain.
Workrave - A program that assists in the recovery and prevention of Repetitive Strain Injury (RSI).

Video

Bomi Player - A powerful and easy-to-use multimedia player.
Celluloid - Simple GTK+ frontend for mpv.
Cheese - Cheese uses your webcam to take photos and videos, applies fancy special effects and lets you share the fun with others.
Clapper - A GNOME media player built using GJS with GTK4 toolkit and powered by GStreamer with OpenGL rendering.
Emby Theater - Emby Server’s official media player.
FFmpeg - FFmpeg is a collection of libraries and tools to process multimedia content such as audio, video, subtitles and related metadata.
Haruna - Open source video player built with Qt/QML and libmpv.
Jellyfin Media Player - Jellyfin Desktop Client based on Plex Media Player.
Kamoso - Kamoso is a simple and friendly program to use your camera. Use it to take pictures and make videos to share.
Kodi - An award-winning free and open source (GPL) software media center for playing videos, music, pictures, games, and more.
LosslessCut - The swiss army knife of lossless video/audio editing.
Miro - Free, and open video, music and internet TV application; it brings video channels from thousands of sources and has more free HD than any other platform.
Movie Monad - A free and simple to use video player made with Haskell.
MPlayer - MPlayer is a movie player which runs on many systems, play any kind of videos.
MPV - A free, open source, and cross-platform media player.
Plex - Plex is a media server and streaming platform that organizes, streams, and shares your digital media content.
SMPlayer - Free Media Player with built-in codecs. Play all audio and video formats.
Stremio - Stremio is a modern media center that’s a one-stop solution for your video entertainment.
Subtitld - Subtitld is an open source software to edit, transcribe and create subtitles.
SVP - SVP allows you to watch any video on your desktop computer using frame interpolation as it is available on high-end TVs and projectors.
VLC - VLC is a free and open source cross-platform multimedia player and framework that plays most multimedia files as well as DVDs, Audio CDs, VCDs, and various streaming protocols.

VPN

CyberGhost - CyberGhost VPN allows you to surf the Internet freely, as if in disguise, regardless of the type of application you use and from where you log in.
ExpressVPN - ExpressVPN is the worlds fastest VPN service. It is both safe and reliable to watch and stream movies abroad, or simply access your favourite sites.
IVPN - IVPN offers a secure VPN service to privacy minded individuals including multi-hop technology and fast bandwidth.
Mozilla VPN - Protect your web history, feel safer on public Wi-Fi, and limit ad tracking by increasing the security of your network connection.
Mullvad - Mullvad is a VPN service that helps keep your online activity, identity, and location private.
NordVPN - NordVPN gives you military-grade protection online, and you can access all your favorite sites without restriction.
OpenVPN - OpenVPN is a virtual private network (VPN) system that implements techniques to create secure point-to-point or site-to-site connections in routed or bridged configurations and remote access facilities. It implements both client and server applications.
Private Internet Access - Private Internet Access provides state of the art, multi-layered security with advanced privacy protection using VPN tunneling.
ProtonVPN - High-speed Swiss VPN that safeguards your privacy.
PureVPN - PureVPN is much more than your usual VPN services provider. It offers unparalleled security and anonymity, making it your only choice for a secure online browsing experience.
Surfshark - All you need in a VPN and more in one easy-to-use app.
Tailscale - Tailscale is a WireGuard-based app that makes secure, private networks easy for teams of any scale.
Windscribe - Browse the web privately as it was meant to be.
WireGuard - WireGuard is an extremely simple yet fast and modern VPN that utilizes state-of-the-art cryptography. It aims to be faster, simpler, leaner, and more useful than IPsec, while avoiding the massive headache.

Wiki Software

DokuWiki - A popular self-hostable wiki software with a large number of plugins.
ikiwiki - ikiwiki is a wiki compiler. It converts wiki pages into HTML pages suitable for publishing on a website. Ikiwiki stores pages and history in a revision control system such as Subversion or Git.
TiddlyDesktop - A desktop app for TiddlyWiki, an open-source personal wiki written in javascript, great if you’re still searching for a good note-taking (and more) app.
Zim - A graphical text editor used to maintain a collection of wiki pages, great for notes and documents. Stored in plain text files for easy version control.

Others

DisplayCAL - Open Source Display Calibration and Characterization powered by ArgyllCMS.
FontForge - Free (libre) font editor for Windows, Mac OS X and GNU+Linux.
GrubCustomizer - Grub Customizer is a graphical interface to configure the GRUB2/BURG settings and menuentries.
Labplot - LabPlot is a KDE-application for interactive graphing and analysis of scientific data.
Mycroft - Mycroft is a hackable open source voice assistant.
OpenRGB - Open source RGB lighting control that doesn’t depend on manufacturer software. For Windows, Linux, MacOS.
Piper - Piper is a GTK+ application to configure gaming mice.
Polychromatic - Graphical front end and tray applet for configuring Razer peripherals on GNU/Linux.
rEFInd - rEFInd is a fork of the rEFIt boot manager. Like rEFIt, rEFInd can auto-detect your installed EFI boot loaders and it presents a pretty GUI menu of boot options.
trackma - Open multi-site list manager for Unix-like systems.

Command Line Utilities

Internet

Daily Reddit Wallpaper - Change your wallpaper to the most upvoted image of the day from /r/wallpapers or any other subreddit on system startup.
ddgr - DuckDuckGo from the command line.
dnscrypt-proxy - DNS proxy with support for encrypted DNS protocols,cross platform.
gallery-dl - Command-line program to download image galleries and collections from pixiv, exhentai, danbooru and more.
Googler - A program that can Google anything right in the command line.
i2pd - I2P daemon written in C++.
mps-youtube - A terminal based program for searching, streaming and downloading music. This implementation uses YouTube as a source of content and can play and download video as well as audio.
Mutt - A terminal based mail client with vim keybindings and great flexibility and customizability.
Newsboat - Newsboat is a fork of Newsbeuter, an RSS/Atom feed reader for the text console.
Rainbow Stream - A smart and nice Twitter client on terminal written in Python.
reddio - A command-line interface for Reddit written in POSIX sh.
Streamlink - Streamlink is a CLI utility which pipes video streams from various services into a video player.
tmpmail - A temporary email right from your terminal written in POSIX sh.
translate-shell - Command-line translator using Google Translate, Bing Translator, Yandex.Translate, etc.
WBOT - A simple CLI based BOT for WhatsApp™ in NodeJS. reply to your friends quickly and have fun along the way.
yewtube - Terminal based YouTube player and downloader. No Youtube API key required. Forked from mps-youtube. Can be installed using pip as described here.
youtube-dl - youtube-dl is a command-line program to download videos from YouTube.com and a few more sites. It requires the Python interpreter (2.6, 2.7, or 3.2+), and it is not platform specific.
yt-dlp - A youtube-dl fork with additional features and fixes.
ytmdl - A simple app to get songs from YouTube in mp3 format with artist name, album name etc from sources like iTunes, Spotify, LastFM, Deezer, Gaana etc.

System Info / Monitoring

auto-cpufreq - Automatic CPU speed & power optimizer for Linux.
bottom - Yet another cross-platform graphical process/system monitor.
bpytop - Resource monitor that shows usage and stats for processor, memory, disks, network and processes. Python port and continuation of bashtop.
btop - Resource monitor that shows usage and stats for processor, memory, disks, network and processes.
Glances - Glances is a system monitoring terminal application that shows you your disk usage, ram usage, and cpu usage in a very friendly way using the Ncurses programming library. It is tolerant to windows resizing, and very low on system ram usage.
gtop - A system monitoring dashboard for terminal. Think ‘graphical top’, with bar charts, line graphs, pie charts, and etc.
htop - An interactive process viewer for Unix systems with improved features and user experience.
hyperfine - A command-line benchmarking tool.
kmon - Linux Kernel Manager and Activity Monitor.
Neofetch - A fast, highly customizable system info script that supports Linux, MacOS, iOS, BSD, Solaris, Android, Haiku, GNU Hurd, MINIX, AIX and Windows.
NVTOP - GPUs process monitoring for AMD, Intel and NVIDIA.
pfetch - A pretty system information tool written in POSIX sh.
screenFetch - Fetches system/theme information in terminal for Linux desktop screenshots.
s-tui - s-tui is an UI for monitoring your computer’s CPU temperature, frequency and utilization in a graphical way from the terminal.

Tools

Age - Simple, Modern, Secure encryption tool.
bat - A cat clone with syntax highlighting and Git integration.
broot - A new way to see and navigate directory trees.
Buku - A Command line bookmark manager.
ccat - Colorizing cat.
Clipboard - Cut, copy, and paste anything, anywhere, anytime.
Cloc - Count Lines of Code: cloc counts blank lines, comment lines, and physical lines of source code in many programming languages.
Color LS - Color Ls is a Ruby Gem that spices up the ls command and shows more visually than ls does without additional commands.
draw - Draw in your terminal.
duf - Disk Usage/Free Utility - a better ‘df’ alternative.
exa - exa is a modern replacement for ls.
fd - A simple, fast and user-friendly alternative to ‘find’.
Fishfry - Replaces fish history with a history tailored to pentesters for efficiency and newbie pentesters for learning.
fzf - A general-purpose command-line fuzzy finder with interactive filter and preview feature for things like files, command history, git commits, hostnames, etc.
fkill - Fabulously kill processes. Cross-platform.
Gkill - An interactive process killer for Linux.
gping - ping but with graph, cross platform.
korkut - Quick and simple image processing at the command line.
Liquidprompt - A full-featured & carefully designed adaptive prompt for Bash & Zsh.
lolcat - Displays text in rainbow colors.
lsd - The next gen ls command.
lshw - Hardware Lister for Linux.
navi - An interactive cheatsheet tool for the command-line.
Onefetch - Git repository summary on your terminal.
PathPicker - A command that lets you select files that were output from a previous command in the command line, so you can then run another command or edit them.
pywal - pywal is a script that takes an image (or a directory of images), generates a colorscheme (using imagemagick) and then changes all of your open terminal’s colors to the new colorscheme on the fly, allowing you to have your terminal colors change with your wallpaper, or other criteria.
ripgrep - Ripgrep is a line-oriented search tool that recursively searches the current directory for a regex pattern.
slides - Terminal based presentation tool.
The Silver Searcher / Ag - A code-searching tool similar to ack, but faster.
Starship - A minimal, blazingly fast and infinitely customizable prompt for any shell, cross-platform.
TheFuck - Magnificent app which corrects your previous console command.
tldr-pages - The tldr-pages project is a collection of community-maintained help pages for command-line tools, that aims to be a simpler, more approachable complement to traditional man pages.
tealdeer - A very fast implementation of tldr written in Rust.
Tmux - It lets you switch easily between several programs in one terminal, detach them (they keep running in the background) and reattach them to a different terminal. And do a lot more.
undistract-me - A command line program that plays a sound or sends a notification when a long command has finished running in the command line.
vagrant - Vagrant is a tool for building and distributing development environments.
VHS - Your CLI home video recorder vhs
wicd-curses - Command line WiFi connection manager.
xsv - A fast CSV command line toolkit written in Rust.
z.lua - A new cd command that helps you navigate faster by learning your habits.
zoxide - A better way to navigate your filesystem written in Rust.
zramd - Automatically setup swap on zram sparkles with optional systemd support, a simpler alternative to zram-generator and systemd-swap

Custom Linux Kernels

GNU Linux-libre - GNU Linux-libre is a project to maintain and publish 100% Free distributions of Linux, suitable for use in Free System Distributions.
Linux-Hardened - A security-focused Linux kernel applying a set of hardening patches to mitigate kernel and userspace exploits. It also enables more upstream kernel hardening features than linux.
linux-tkg - Scripts to automatically download, patch and compile the Linux Kernel from the official Linux git repository, with a selection of patches aiming for better desktop/gaming experience.
Liquorix - Liquorix is a distro kernel replacement built using the best configuration and kernel sources for desktop, multimedia, and gaming workloads.
XanMod - XanMod is a general-purpose Linux kernel distribution with custom settings and new features. Built to provide a stable, responsive and smooth desktop experience.
Zen - Result of a collaborative effort of kernel hackers to provide the best Linux kernel possible for everyday systems.

Desktop Environments

Budgie - Budgie is a desktop environment designed with the modern user in mind, it focuses on simplicity and elegance.
Cinnamon - Cinnamon strives to provide a traditional user experience. Cinnamon is a fork of GNOME 3.
Deepin DE - DDE (Deepin Desktop Environment) is the default desktop environment originally created for the Linux Deepin distribution.
Enlightenment - A lightweight and pretty desktop environment that is designed to run fast and look good, while retaining a large degree of customization.
GNOME - The GNOME desktop environment is an attractive and intuitive desktop with both a modern (GNOME) and a classic (GNOME Classic) session.
GNOME Flashback - GNOME Flashback is a shell for GNOME 3 which was initially called GNOME fallback mode. The desktop layout and the underlying technology is similar to GNOME 2.
KDE Plasma - The KDE Plasma desktop environment is a familiar working environment. Plasma Desktop offers all the tools required for a modern desktop computing experience so you can be productive right from the start.
LXDE - The Lightweight X11 Desktop Environment is a fast and energy-saving desktop environment.
LXQt - LXQt is the Qt port and the upcoming version of LXDE, the Lightweight Desktop Environment.
Mate - Mate provides an intuitive and attractive desktop to Linux users using traditional metaphors. MATE is a fork of GNOME 2.
Pantheon - Pantheon is the default desktop environment originally created for the elementary OS distribution.
UKUI - UKUI is a desktop environment for Linux distributions and other UNIX-like operating systems, originally developed for Ubuntu Kylin, and written using the Qt framework.
Unity - Unity is a shell for GNOME designed by Canonical for Ubuntu.
Xfce - Xfce embodies the traditional UNIX philosophy of modularity and re-usability.

Display manager

Console

CDM - A ultra-minimalistic, yet full-featured login manager written in Bash.
Console TDM - An extension for xinit written in pure Bash.
Lemurs - A customizable TUI display/login manager written in Rust.
Ly - Ly is a lightweight, TUI (ncurses-like) display manager for Linux.
nodm - A minimalistic display manager for automatic logins.

Graphic

Entrance - An EFL based display manager, highly experimental.
GDM - The GNOME display manager.
LightDM - A cross-desktop display manager, can use various front-ends written in any toolkit.
LXDM - The LXDE display manager. Can be used independent of the LXDE desktop environment.
MDM - The MDM display manager, used in Linux Mint, a fork of GDM 2.
SDDM - The QML-based display manager and successor to KDE4’s kdm; recommended for Plasma 5 and LXQt.
SLiM - Lightweight and elegant graphical login solution. (Discontinued)
XDM - The X display manager with support for XDMCP, and host chooser.

Window Managers

Compositors

Picom - Picom is a standalone composite manager, suitable for use with window managers that do not natively provide compositing functionality.
Gamescope - Gamescope is a micro-compositor that provides a sandboxed Xwayland desktop with independent input, resolution, and refresh rate.
Hyprland - Hyprland is a dynamic tiling Wayland compositor that doesn’t sacrifice on its looks.
River - River is a dynamic tiling Wayland compositor with flexible runtime configuration.
Sway - Sway is tiling Wayland compositor and a drop-in replacement for the i3 window manager for X11.
Wayfire - Wayfire is a wayland compositor based on wlroots. It aims to create a customizable, extendable and lightweight environment without sacrificing its appearance.
Xcompmgr - Xcompmgr is a simple composite manager capable of rendering drop shadows and, with the use of the transset utility, primitive window transparency.

Stacking Window Managers

2bwm - A fast floating WM, with the particularity of having 2 borders, written over the XCB library and derived from mcwm.
Blackbox - A fast, lightweight window manager for the X Window System, without all those annoying library dependencies.
Fluxbox - A window manager for X that was based on the Blackbox 0.61.1 code.
IceWM - A window manager for the X Window System. The goal of IceWM is speed, simplicity, and not getting in the user’s way.
Openbox - A highly configurable, next generation window manager with extensive standards support.

Tiling Window Managers

Bismuth - Making tiling window management easy. On KDE Plasma.
Bspwm - Bspwm is a tiling window manager that represents windows as the leaves of a full binary tree.
Herbstluftwm - Is a Manual tiling window manager for X11 using Xlib and Glib.
i3 WM - A better tiling and dynamic window manager. It’s completely written from scratch. The target platforms are GNU/Linux and BSD operating systems.
Pop!_OS Shell - Pop Shell is a keyboard-driven auto-tiling window manager that run on top of the GNOME shell.
Qtile - Qtile is a full-featured, hackable tiling window manager written and configured in Python.

Dynamic Window Managers

awesome - A highly configurable, next generation framework window manager for X.
dwm - A dynamic window manager for X. It manages windows in tiled, monocle and floating layouts.
Kröhnkite - A dynamic tiling extension for KWin.
spectrwm - A small dynamic tiling window manager for X11, largely inspired by xmonad and dwm.
Worm - A dynamic, tag-based window manager written in Nim.
xmonad - A dynamically tiling X11 window manager that is written and configured in Haskell.

Linux News, Apps, and more:

Contributors

Thanks to All of Github contributors for making this list possible and Everyone @ reddit.com/r/linux & reddit.com/r/ubuntu & vozforums.com & other forums for many suggestions and compliments …

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How to Use Github
How to Git from the Command Line
What is Markdown? - Markdown is the writing method used to create this list, if you want to know how to format properly, it’s best that you learn how to use Github Markdown.
Alternative Markdown Guide

Items marked with are open-source software and link to the source code. Items marked with are nonfree (as in nonfree beer). Items marked with are nonfree (as in nonfree beer) and will cost money to use.

Author’s note: Recently, I received feedback from you about the quality of some of the applications on this list. I have tested a lot of these, but not all. If you have any problems with the apps, please: -> head to the dev page (if available) -> make an issue for the dev there -> make an issue here so that I can consider whether I should remove the app from the list. Remember : Every piece of software has it’s own merits, so there will never be anything like “best app” or “selective list” here, thank you.

License

This work is licensed under a Creative Commons Attribution 4.0 International License.