GitHub - KnowNo/Awesome-Linux-Software: 🐧 A list of awesome applications, software, tools and other materials for Linux distros.

🐧 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.

Update: This repo has been published on Gitbook. You can share this link with new users, as they may find it friendlier to read than GitHub. Download as a pdf here.

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 student. Anyone can open a discussion in the issue section, or a pull request if something should be modified or added. If you consider my work valuable, a donation is much appreciated.

Brazilian Portuguese version : here.
Chinese version : here or here or here.
Spanish version : here or here

Applications

Audio

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

Airtime - The open broadcast software for scheduling and remote station management
Ardour - Record, Edit, and Mix on Linux
Audacious - An open source audio player that plays your music how you want it, without stealing away your computer’s resources from other tasks.
Audacity - Free, open source, cross-platform software for recording and editing sounds.
Audio Recorder - Simple audio recorder available in an Ubuntu PPA.
Auryo - Unofficial multiplatform SoundCloud® app for your desktop.
Cantata - Qt5 Graphical MPD (Music Player Daemon) Client for Linux, Windows, MacOS.
Clementine - Play numerous lossy and lossless audio formats.
Cmus - A small, fast and powerful console music player for Unix-like operating systems.
Deepin Music - An application, developed by Deepin Technology Team, which focused on local music playing.
Gnormalize - An audio converter and CD ripper with ReplayGain normalization algorithms, a metadata (tag) editor and an audio player. It uses gtk2-perl under GNU/Linux. [
Google Play Music - Unofficial but beautiful cross-platform desktop player for Google Play Music.
Gpodder - Media aggregator and podcast client.
GRadio - Radio software for Ubuntu Linux.
Harmony - Music player with sleek interface & cloud compatibility.
Hydrogen - Advanced drum machine for GNU/Linux.
K3b - The CD/DVD Kreator for Linux, optimized for KDE.
Kid3Qt - Edit tags of multiple files, e.g. the artist, album, year and genre of all mp3 files of an album.
KxStudio - A collection of applications and plugins for professional audio production.
Libretime - The open broadcast software for scheduling and remote station management; forked from Airtime.
LMMS - Making music on your PC by creating melodies and beats, synthesizing and mixing sounds, arranging samples and much more.
Lollypop - A GNOME music playing application.
Lyricfier - A Spotify Lyrics alternative app.
Mixxx - Free DJ software that gives you everything you need to perform live mixes; veritable alternative to Traktor.
Mellow Player - Cloud music integration for your desktop.
Museek - A simple, clean and cross-platform music player.
MusixMatch - A Capable lyrics app with synchronized lyrics function.
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.
OSD Lyrics - Show lyrics with your favorite media player.
Parlatype - GNOME audio player for transcription.
Pithos - A native Pandora client for Linux.
PulseEffect - Limiter, compressor, reverberation, equalizer and auto volume effects for Pulseaudio applications.
Quod Libet - GTK+ music player written with huge libraries in mind. Supports search-based dynamic playlists, regular expressions, tagging, Replay Gain, podcasts & Internet radio.
RadioTray-NG - An Internet radio player for Linux.
Rhythmbox - Music player from GNOME.
Sayonara Player - A small, clear and fast audio player for Linux written in C++, supported by the Qt framework.
Soundconverter - Leading audio file converter. Aims to be simple to use, and very fast.
SoundJuicer - CD Ripping tool for GNOME.
Soundnode - An opensource SoundCloud app for desktop.
Spotio - A Rdio-inspired light theme for the Spotify desktop app.
Tomahawk - A new kind of music player that invites all your streams, downloads, cloud music storage, playlists, radio stations and more.
Vocal - Podcast client for the modern desktop.

Chat Clients

3rd party Client

All-in-One Client

Chat Client Utilities

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.

IRC Client

Official Client

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.
Gitter - Gitter — Where developers come to talk. Gitter is designed to make community messaging, collaboration and discovery as smooth and simple as possible.
Jitsi - Jitsi is a free and open source multiplatform voice, videoconferencing and instant messaging application for Windows, Linux, Mac OS X and Android.
qTox - A simple distributed, secure messenger with audio and video chat capabilities.
Ring - Chat. Talk. Share. Ring is a free and universal communication platform which preserves the users' privacy and freedoms.
Riot - A glossy Matrix collaboration client for the web.
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.
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.
Weechat - WeeChat is a fast, light and extensible chat client.
Wire - Secure communication. Full privacy.

Data Backup and Recovery

Desktop Customization

Desktop Themes

Desktop Widgets and Theme Utilities

Compiz Config settings manager - The OpenCompositing Project brings 3D desktop visual effects that improve usability of the X Window System and provide increased productivity.
Conky - Conky is a free, light-weight system monitor for X, that displays any kind of information on your desktop.
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.
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.
Macbuntu - A transformation pack for making your desktop look like a macOS.
OCS store - Desktop app of openDesktop.org, which is one of the largest communities where developers and artists share applications, themes and other content.
Oomox theme generator - A Graphical application for generating different color variations of a Numix-based and Flat-Plat themes (GTK2, GTK3), Gnome-Colors and Archdroid icons. [
Unity Tweak Tool - A Must-have app for Ubuntu Unity customization.
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. [

Desktop Icon Packs

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.

C++

Clion - A cross-platform and powerful IDE for C and C++! Nonfree
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.
DBeaver - A universal database client supporting multiple platforms and databases.
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.
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.
MyCLI - MyCLI is a command line interface for MySQL, MariaDB, and Percona with auto-completion and syntax highlighting.
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.
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.
OmniDB - Browser-based tool that visually create, manage, and view databases.

Golang

Gogland - Gogland is the codename for a new commercial IDE by JetBrains aimed at providing an ergonomic environment for Go development.

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 - Powerful IDE for JAVA.

Javascript

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

Microcomputer and Embedded Devices

Multiple Languages Support

PHP

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

Python

PyCharm - Powerful IDE for Python

Shell

Supporting Tools

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.
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.
Fossil - Self-contained, distributed software configuration management system with integrated bug-tracking, wiki, technotes and web interface.
Genymotion - Genymotion is a fast third-party emulator that can be used instead of the default Android emulator.
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.
GitCola - Git Cola is a sleek and powerful graphical Git client. Written in Python and GPL-licensed.
Gitg - gitg is the GNOME GUI client to view git repositories.
GitKraken - The downright luxurious Git GUI client,for Windows, Mac & Linux.
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.
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.
Insomnia - A simple, beautiful, and free REST API client.
Jupyter Notebook - An open source program that provides interactive data and scientific computing information across over 40 programming languages.
Meld - Meld is a visual diff and merge tool that helps you compare files, directories, and version controlled projects.
Mockingbot - Mockingbot is an easy-to-use prototyping tool.
Nemiver - Nemiver is a project to write a standalone graphical debugger that integrates well in the GNOME desktop environment.
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.
SmartGit - SmartGit is a Git client with support for GitHub Pull Requests+Comments and SVN. [
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.
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.
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.
Zeal - Zeal is an offline documentation browser for software developers.

E-Book Utilities

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.
Foxit - Foxit Reader 8.0—Award-winning PDF Reader.
Gnome Books - GNOME Books is application for listing, searching and reading eBooks.
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.
PDFsam - A desktop application to split, extract pages, rotate, mix and merge PDF files.
Peruse - A pleasant way to read comic books.
qpdf - 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.

Editors

Atom - Hackable text editor for the 21st century.
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.
Emacs - An extensible, customizable, free/libre text editor — and more.
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.
Kakoune - Kakoune code editor - Vim inspired. Faster as in less keystrokes. Multiple selections. Orthogonal design. Has a strong focus on interactivity.
Kate - Kate is a multi-document editor part of KDE since release 2.2.
Komodo Edit - Free and open source multilanguage development environment.
Lighttable - The next generation code editor! Support live coding.
Spacemacs - A community-driven Emacs distribution.
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.
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.
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.
Nano - GNU Nano is a text editor which aims to introduce a simple interface and intuitive command options to console based text editing.
Neovim - Neovim is a fork of Vim aiming to improve user experience, plugins, and GUIs.
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.

Education

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.
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 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.
ITalc - iTALC is a computer management software for classrooms, it allows a teacher to control student computers and guide students over a computer network.
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. [
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.
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.
Moodle - Course management system for online learning.
OpenEuclid - OpenEuclide is a 2D geometry software: figures are defined dynamically by describing formal geometrical constraints.
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.
Tux4Kids - Tux4Kids develops high-quality software for kids, with the goal of combining fun and learning into an irresistible package.
UGENE - UGENE is free open-source cross-platform integrated GUI-based bioinformatics software.

Email

Claws - Claws is an email client and news reader, featuring sophisticated interface, easy configuration, intuitive operation, abundant features and plugins, robustness and stability.
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.
Nylas Mail - An extensible desktop mail app built on the modern web.
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.
Wmail - Gmail & Google Inbox unofficial desktop client for linux.

File Manager

Games

RTS

Turn Based Strategy

City Building Simulation

FPS

RPG

Miscellaneous

Engine Re-creations (require the actual game)

Gaming Applications

Graphics

Graphic Creation

Blender - a free and open source complete 3D creation pipeline for artists and small teams.
Cinepaint - Open source deep paint software.
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.
Karbon - An open source vector drawing program.
Krita - Open Source Software for Concept Artists, Digital Painters, and Illustrators.
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.
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.
Synfig Studio - Open-source 2D animation software.
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.
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.

Image Editor

Image Management

Miscellaneous

PSD, Sketch Inspection

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

Screen Recorder

Screenshot

Streaming

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.

Video editor

Internet

Browser

Supportive Tool

Web Service Client

Office

Accounting

Office Suites

LaTeX

Gummi gtk2|gtk3 - Simple latex editor with templates, spell check, and wizards.
LaTeXila - LaTeXila is a LaTeX editor for the GNOME desktop.
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.
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

Novel Writing

Productivity

Automation

Actionaz - An utility for task automation Ubuntu/Linux.
Autokey - A desktop automation utility for Linux allows you to manage collection of scripts and phrases, and assign abbreviations and hotkeys to these.
Caffeine - Prevents Ubuntu from automatically going to sleep.

Dock

Local Search

Miscellaneous

Note Taking

Time and Task

Widget and Indicator

Brightness - Brightness indicator for Ubuntu.
My Weather Indicator - Weather indicator and widget for ubuntu.
Recent Noti - An indicator for recent notification.

Proxy

Security

ClamAV - ClamAV is an open source antivirus engine for detecting trojans, viruses, malware & other malicious threats.
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.
FireHOL - Linux firewall (iptables) manager for humans.
FireQoS - Linux QoS (tc) 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.
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.
GuFW - One of the easiest firewalls in the world of Linux.
IPrange - A very fast command line utility for processing IP lists (merge, compare, exclude, etc).
keysniffer - 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.
OpenSSH - OpenSSH Secure Shell Server and Client
Password Safe - Password Safe allows you to safely and easily create a secured and encrypted user name/password list.
Pass - The standard Unix password manager.
Seahorse - A Gnome frontend for GnuPG.
Tcpdump - TCP Debugging/Capture Tool.
Update-IPsets - A manager for all cybercrime IP feeds that can download, convert and install netfilter ipsets.

Sharing Files

aria2 - aria2 is a lightweight multi-protocol & multi-source command-line download utility.
CrossFTP - CrossFTP makes it extremely simple to manage the FTP related tasks.
D-lan - A free LAN file sharing software.
Deluge - Deluge is a lightweight, Free Software, cross-platform BitTorrent client.
Dropbox - Dropbox is a free service that lets you bring your photos, docs, and videos anywhere and share them easily.
Filezilla - The free FTP solution.
Flareget - Full featured, multi-threaded download manager and accelerator.
KTorrent - KTorrent is a BitTorrent application by KDE which allows you to download files using the BitTorrent protocol.
Mega - Easy automated syncing between your computers and your MEGA cloud drive.
Meiga - A tool that makes possible to share selected local directories via web.
NitroShare - Cross-Platform network file transfer application.
ownCloud - The goal of ownCloud is to give you access to your files wherever you are.
PushBullet for desktop - The missing Desktop application for Pushbullet.
PushBullet - Pushbullet connects your devices, making them feel like one.
qBittorent - The qBittorrent project aims to provide a Free Software alternative to µTorrent.
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.
Teamviewer - PC remote control/remote access software, free for personal use.
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.
uGet - A download manager that can monitor the clipboard for downloadable links, and can create a list of downloads, and run them in parallel.
uTorrent - Elegant, efficient torrent downloading.
Vuze - Bittorrent Client is an end-to-end software application for all your torrent needs.
Web Torrent Desktop - Web Torrent Desktop is for streaming torrents which connects to both BitTorrent and WebTorrent peers.
Wormhole - get arbitrary-sized files and directories (or short pieces of text) from one computer to another safely.

Terminal

Alacritty - A cross-platform, GPU-accelerated terminal emulator.
Cool Retro Term - A good looking terminal that mimicks the old cathode display.
GnomeTerminal - A widely preinstalled terminal emulator in Linux world.
Guake - Guake is a top-down terminal for Gnome.
Hyper - A terminal built on web technologies.
Konsole - An alternative terminal emulator for KDE desktop environment.
RXVT-Unicode - rxvt-unicode is a fork of the well known terminal emulator.
RXVT - A terminal emulator for X11, a popular replacement for the standard ‘xterm’.
Sakura - Simple but powerful libvte based terminal emulator, supporting utf-8 and input methods as provided by gtk+ and pango libraries.
Terminator - It’s quite clear that the most powerful terminal emulator on Linux is the feature-filled Terminator.
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.
Terminus - modern, highly configurable terminal app based on web technologies.
Termite - A keyboard-centric VTE-based terminal, aimed at use within a window manager with tiling and/or tabbing support.
Termit - Simple terminal emulator based on vte library, extensible via Lua.
Termius - cross-platform terminal with built-in SSH and Telnet.
Tilix - A tiling terminal emulator for Linux using GTK+ 3.
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.
Upterm - Upterm (formerly Black Screen) is an IDE in the world of terminals. Strictly speaking, it's both a terminal emulator and an interactive shell based on Electron.
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.

Utilities

Angry IP Scanner - Fast and friendly network scanner.
Aptik - A tool for you to organize your Favorite PPAs and manage Packages Easily.
Bleach bit - BleachBit quickly frees disk space and tirelessly guards your privacy. Free cache, delete cookies, clear Internet history, shred temporary files, delete logs, and more.
Brasero - A capable CD/DVD burner.
Cheat - Cheat allows you to create and view interactive cheatsheets on the command-line.
Clonezilla - Clonezilla is a partition and disk imaging/cloning program similar to True Image® or Norton Ghost®.
Convertall - A program that can convert many units of measurement to other units.
CPU-G - Easy monitoring the battery life of your Ubuntu laptop.
Curlew - A GTK media converter for the GNOME desktop.
EasyStroke - Easystroke is a gesture-recognition application for X11.
Emoji Keyboard - Virtual keyboard-like emoji picker for Linux.
Encryptr - Encryptr is a zero-knowledge, cloud-based e-wallet / password manager powered by Crypton.
Enpass - Enpass makes your life easy by securely managing your passwords and important information.
FreeRDP - FreeRDP is a free implementation of the Remote Desktop Protocol (RDP).
GD map - A tool to visualize disk usage.
Gloobus-Preview - It gives you a quick preview of your files. It's similar to Sushi .
GnomePie - the circular app launcher for Linux desktops.
GParted - Disk Partition utility for Linux.
Gramps - Research, organize and share your family tree with Gramps.
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.
KeePassXC - Cross platform password manager. A Community-maintained fork of KeePassX(dead)
KeePass - Windows focused password manager, with some cross platform support through Mono.
KeeWeb - Free cross-platform password manager compatible with KeePass
Komorebi - Komorebi is a background manager for all Linux platforms, provides fully customizeable backgrounds that can be tweaked at any time.
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).
LastPass - LastPass is a crossplatform freemium password management service that stores encrypted passwords in private accounts.
Mosh - Mosh is a Remote terminal application that allows roaming, supports intermittent connectivity, and provides intelligent local echo and line editing of user keystrokes.
Nativefier - Make any web page a desktop application
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).
Ncdu - A disk usage analyzer with an ncurses interface.
PeaExtractor A utility designed to unzip files and be as frictionless as possible, and easy to use as possible.
PeaUtilities PeaUtils is a suite of file management utilities, including hash checksums, secure delete, and file comparisons.
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.
PlexyDesk - Plexydesk supports multiple widget workspaces/desktops on Linux.
Powertop - A tool that can help diagnose issues with power consumption in Linux.
Psensor - A graphical hardware temperature monitor for Linux.
Pulse Audio - Improve Linux Audio with customized Profiles.
Remmina - A feature-rich remote desktop application for Linux and other UNIXes.
Stacer - The most well known Ubuntu System Optimizer.
Sushi - Sushi is a quick previewer for Nautilus, the GNOME desktop file manager.
SimpleScreenRecorder - SimpleScreenRecorder is a feature-rich screen recorder that supports X11 and OpenGL. It has a Qt-based graphical user interface.
Synaptic - Synaptic is a graphical package management program for apt.
Systemload - A program that shows current system load in a status bar.
TightVNC - A Free, Lightweight, Fast and Reliable Remote Control / Remote Desktop Software. []
TLP - An application that can help optimize battery life on Linux.
Trimage - A cross-platform tool for losslessly optimizing PNG and JPG files.
UbuntuCleaner - Ubuntu Cleaner is a tool that makes it easy to clean your Ubuntu system.
Ubunsys - An application designed to allow you to change in-depth system features without the command line.
ULauncher - An application launcher for Linux.
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.
Virtualbox - VirtualBox is a general-purpose full virtualizer for x86 hardware, targeted at server, desktop and embedded use.
WallpaperChange - Automatically change your wallpaper.
Workrave - A program that assists in the recovery and prevention of Repetitive Strain Injury (RSI).
Xtreme Download Manager - A good download manager with fresh UI for Linux.

Video

Bomi Player - A powerful and easy-to-use multimedia player.
Cheese - Cheese uses your webcam to take photos and videos, applies fancy special effects and lets you share the fun with others.
Kodi - An award-winning free and open source (GPL) software media center for playing videos, music, pictures, games, and more.
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.
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.
SMPlayer - Free Media Player with built-in codecs. Play all audio and video formats.
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.

Wiki software

Others

Command Line Utilities

2048 - Play the famous 2048 in commandline.
Bastet - Play Tetris in commandline.
Backgammon - Play Backgammon in commandline.
Buku - A Command line bookmark manager.
Color LS - Color Ls is a Ruby Gem that spices up the ls command and shows more visually than ls does without additional commands.
Daily Reddit Wallpaper - Change your wallpaper to the most upvoted image of the day from /r/wallpapers or any other subreddit on system startup.
exa - exa is a modern replacement for ls.
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.
Gkill - An interactive process killer for Linux.
Googler - A program that can Google anything right in the command line.
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 useage.
Greed - Tron game in the linux command line.
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
Liquidprompt - A full-featured & carefully designed adaptive prompt for Bash & Zsh.
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.
Neofetch - A fast, highly customizable system info script that supports Linux, MacOS, iOS, BSD, Solaris, Android, Haiku, GNU Hurd, MINIX, AIX and Windows.
Newsbeuter - A fast and customizable RSS feed reader with vim keybindings.
Ninvaders - Play Space Invaders on the command line.
nSnake - Play the classic Nokia snake game on the command line.
Pacman4console - Play Pacman game in console.
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.
s-tui - s-tui is an UI for monitoring your computer's CPU temperature, frequency and utilization in a graphical way from the terminal.
TheFuck - Magnificent app which corrects your previous console command.
The Silver Searcher / Ag - A code-searching tool similar to ack, but faster.
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.
Top 10 command line tools
Tron - Play the best action game, Tron in the command line.
wicd-curses - Command line WiFi connection manager.
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.

Desktop Environments

Display manager

Console

Graphic

Window Managers

Compositors

Stacking window managers

Tiling window managers

Dynamic window managers

Setup

Arch Linux

Bodhi

CentOS

openSUSE

Ubuntu

Other distros

To be added later

Discussion Forums

Arch Linux Forums

Bodhi Linux Forums

Bodhi Linux Forums

CentOS Forums

CentOS Forums

Ubuntu Forums

openSUSE Forums

openSUSE Forum

IRC channels

Linux News, Apps, and more:

Learn Linux

Linux Hacking/Development

Other Awesome Lists

These are the list that I highly recommended:

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 ...

⬆ back to top

Guidelines to contribute

Simply put the name of the application in the list. Link to its homepage or a guide on how to install it. Also write a short description for the application + add icon. Make sure it is put under the appropriate topic. If the application doesn't fit in any existing topic, make a new one for it. Ensure everything is alphabetically sorted.

Unsure how to contribute?

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) and may cost money to use.

Author's note: Recently, I received feedbacks from you about the quality of some applications on this list. I myself tested them out a lot (not all of them, though). 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 get the app out of the list. Remember : Everything has its own quality, 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.

A beer in your country can buy a meal in mine.

Table of Contents

Applications

Audio

Chat Clients

3rd party Client

All-in-One Client

Chat Client Utilities

IRC Client

Official Client

Data Backup and Recovery

Desktop Customization

Desktop Themes

Desktop Widgets and Theme Utilities

Desktop Icon Packs

Development

Android

C++

Database

Golang

Java

Javascript

Microcomputer and Embedded Devices

Multiple Languages Support

PHP

Python

Shell

Supporting Tools

E-Book Utilities

Editors

Education

Email

File Manager

Games

RTS

Turn Based Strategy

City Building Simulation

FPS

RPG

Miscellaneous

Engine Re-creations (require the actual game)

Gaming Applications

Graphics

Graphic Creation

Image Editor

Image Management

Miscellaneous

PSD, Sketch Inspection

Screen Recorder

Screenshot

Streaming

Video editor

Internet

Browser

Supportive Tool

Web Service Client

Office

Accounting

Office Suites

LaTeX

Markdown

Novel Writing

Productivity

Automation

Dock

Local Search

Miscellaneous

Note Taking

Time and Task

Widget and Indicator

Proxy

Security

Sharing Files

Terminal

Utilities

Video

Wiki software

Others

Command Line Utilities

Desktop Environments

Display manager