Software using the GNU General Public License

suite of machine learning software written in Java

audio player, free and open source software

LimeWire was a free peer-to-peer file sharing client for Windows, Mac OS X, Linux, and Solaris. Created by Mark Gorton in 2000, it was most prominently a tool used for the download and distribution of pirated materials, particularly pirated music.

PDF reader, free software

TYPO3 is a web content management system (CMS) written in the programming language PHP. It is free and open-source software released under the GNU General Public License version 2.

virtualization module in the Linux kernel

diagramming software

According to the Free Software Foundation Latin America, Linux-libre is a modified version of the Linux kernel that contains no binary blobs, obfuscated code, or code released under proprietary licenses. In the Linux kernel, those types of code are mostly used for proprietary firmware images. While generally redistributable, they do not give the user the freedom to audit, modify, or, consequently, redistribute their modified versions. The GNU Project keeps Linux-libre in synchronization with the mainline Linux kernel.

LMMS (formerly Linux MultiMedia Studio) is a digital audio workstation application program. It allows music to be produced by arranging samples, synthesizing sounds, entering notes via computer keyboard or mouse (or other pointing device) or by playing on a MIDI keyboard, and combining the features of trackers and sequencers. It is free and open source software, written in Qt and released under GPL-2.0-or-later.

YaST (Yet another Setup Tool) is a Linux operating system setup and configuration tool.

free and open-source command-line package management utility for Fedora, RHEL, and CentOS

KiCad ( ) is a free software suite for electronic design automation (EDA). It facilitates the design and simulation of electronic hardware for PCB manufacturing. It features an integrated environment for schematic capture, PCB layout, manufacturing file viewing, ngspice-provided SPICE simulation, and engineering calculation. Tools exist within the package to create bill of materials, artwork, Gerber files, and 3D models of the PCB and its components.

LibreCAD is a computer-aided design (CAD) application for 2D design. It is free and open-source, and available for Unix/Linux, macOS, and Microsoft Windows operating systems.

Bitwarden is a freemium open-source password management service that is used to store sensitive information, such as website credentials, in an encrypted vault. It is owned and developed by Bitwarden, Inc.

Linux package management system

Linux distribution

WinSCP (Windows Secure Copy) is a file manager, SSH File Transfer Protocol (SFTP), File Transfer Protocol (FTP), WebDAV, Amazon S3, and secure copy protocol (SCP) client for Microsoft Windows. The WinSCP project has released its source code on GitHub under an open source license, while the program itself is distributed as proprietary freeware.

netcat (often abbreviated to nc) is a computer networking utility for reading from and writing to network connections using TCP or UDP. The command is designed to be a dependable back-end that can be used directly or easily driven by other programs and scripts. At the same time, it is a feature-rich network debugging and investigation tool, since it can produce almost any kind of connection its user could need and has a number of built-in capabilities.

Calligra Suite is a graphic art and office suite by KDE. It is available for desktop PCs, tablet computers, and smartphones. It contains applications for word processing, spreadsheets, presentation, databases, vector graphics, and digital painting.

KeePass Password Safe is a free and open-source password manager primarily for Windows. It officially supports macOS and Linux operating systems through the use of Mono. Additionally, there are several unofficial ports for Windows Phone, Android, iOS, and BlackBerry devices, which normally work with the same copied or shared (remote) password database. KeePass stores usernames, passwords, and other fields, including free-form notes and file attachments, in an encrypted file. This file can be protected by any combination of a master password, a key file, and the current Windows account details.

MAME (formerly an acronym of Multiple Arcade Machine Emulator) is a free and open-source emulator designed to emulate the hardware of arcade games, later expanded to include video game consoles, old computers and other systems in software on modern personal computers and other platforms. Its intention is to preserve gaming history by preventing vintage video games from being lost or forgotten. It does this by emulating the inner workings of the emulated machines; the ability to actually play the video games is considered "a nice side effect". Joystiq has listed MAME as an application that ever

rsync (remote sync) is a utility for transferring and synchronizing files between a computer and a storage drive and across networked computers by comparing the modification times and sizes of files. It is commonly found on Unix-like operating systems and is under the GPL-3.0-or-later license.

Open source content management system

open source instant messaging and VoIP client

text and HTML editor

BitTorrent client

UseModWiki is a wiki software written in Perl and licensed under the GNU General Public License. Pages in UseModWiki are stored in ordinary files, not in a relational database. Wikipedias in English and many other languages were powered by UseModWiki until switching to MediaWiki.

Konsole is a free and open-source terminal emulator graphical application which is part of KDE Applications and ships with the KDE desktop environment. Konsole was originally written by Lars Doelle. It ls licensed under the GPL-2.0-or-later and the GNU Free Documentation License.

SuperTuxKart (STK) is a free and open-source kart racing game, distributed under the terms of the GNU General Public License, version 3. Its initial version was released in 2007. It features mascots of various open-source projects. SuperTuxKart is cross-platform, running on Linux, macOS, Windows, iOS (beta), Android systems and Nintendo Switch (homebrew).

Kaffeine is a media player for Unix-like operating systems by KDE.

Compiere (pronounced KOM-pyeh-reh, "to accomplish, complete, fulfill" in Italian) is an open-source ERP and CRM business solution for small and medium-sized enterprises (SME) in distribution, retail, service, and manufacturing. Compiere is distributed by Consona Corporation and through a partner network, who are a collection of trained and authorized business partners.

TrueNAS is a family of enterprise network-attached storage (NAS) products developed by iXsystems Inc., dba TrueNAS. The products consist of TrueNAS Enterprise and TrueNAS Community Edition. TrueNAS Enterprise is a family of storage appliances, with fully integrated software and hardware, that is sold as a commercial product with enterprise support. TrueNAS Community Edition can be installed for free on commodity x86-64 computers. The operating systems include components released under a proprietary license, GPL and BSD licenses.

KStars is a free and open-source planetarium program built using the KDE Frameworks. It is available for Linux, BSD, macOS, and Microsoft Windows. A light version of KStars is available for Android devices. It provides an accurate graphical representation of the night sky, from any location on Earth, at any date and time. The display includes up to 100 million stars (with additional addons), 13,000 deep sky objects, constellations from different cultures, all 8 planets, the Sun and Moon, and thousands of comets, asteroids, satellites, and supernovae. It has features to appeal to users of all l

software deployment and package management system developed by Canonical

Okular is a free and open source multiplatform document viewer developed by the KDE community based on the Qt and KDE Frameworks libraries. It is distributed as part of the KDE Applications bundle. It replaced KPDF, its main predecessor, alongside KGhostView, KFax, KFaxview and KDVI in KDE 4. Its functionality can be embedded in other applications.

digiKam is a free and open-source image organizer and tag editor written in C++ using the KDE Frameworks.

UNetbootin ("Universal Netboot Installer") is a cross-platform utility that can create live USB systems and can load a variety of system utilities or install various Linux distributions and other operating systems without a CD.

XOOPS is a free open-source content management system (CMS), written in PHP. It uses a modular architecture allowing users to customize, update and theme their websites. XOOPS is released under the terms of the GNU General Public License (GPL) and is free to use, modify and redistribute.

genealogy application

free and open-source end-to-end encrypted email software and host

open-source software platform for remote configuring and managing computers

Media player software of the desktop environment GNOME

YaCy (pronounced “ya see”) is a free distributed search engine built on the principles of peer-to-peer (P2P) networks, created by Michael Christen in 2003. The engine is written in Java and distributed on several hundred "YaCy-peer" computers, .

1994 action-adventure game developed by Adeline Software International

OpenJDK (Open Java Development Kit) is a free and open-source implementation of the Java Platform, Standard Edition (Java SE). It is the result of an effort Sun Microsystems began in 2006, four years before the company was acquired by Oracle Corporation. The implementation is licensed under the GNU General Public License 2 with a linking exception, preventing components that linked to the Java Class Library becoming subject to the terms of the GPL license. OpenJDK is the official reference implementation of Java SE since version 7, and is the most popular distribution of the JDK.

GNOME webcam application

decentralized encrypted chat and collaboration software powered by the Matrix protocol

Metacity (pronounced ) was the default window manager used by the GNOME 2 desktop environment until it was replaced by Mutter in GNOME 3. It is still used by GNOME Flashback, a session for GNOME 3 that provides a similar user experience to the Gnome 2.x series sessions.

FreeCol is a 4X video game, a clone of ''Sid Meier's Colonization. FreeCol is free and open source software released under the GNU GPL-2.0-or-later. In 2023, the FreeCol'' project reached its 1.0 release, after twenty years of development.

jEdit is a free software text editor available under GPL-2.0-or-later. It is written in Java and runs on any operating system with Java support, including BSD, Linux, macOS and Windows.

Gwenview is an image viewer for Unix-like systems (including Linux) and is released as part of the KDE Applications bundle. The current maintainer is Aurélien Gâteau. The word "Gwen" means "white" in the Breton language and is commonly used as a first name.

cross-platform music player software

Haxe is a high-level cross-platform programming language and compiler that can produce applications and source code for many different computing platforms from one code-base. It is free and open-source software, released under an MIT License. The compiler is written in OCaml. It can be run in server-mode to provide code completion for integrated development environments (IDEs).

free Digital Audio Workstation

free and open-source SWF (Flash) player (GNU Project)

PHP-Nuke is a web-based automated news publishing and content management system based on PHP and MySQL originally written by Francisco Burzi. The system is controlled using a web-based user interface. PHP-Nuke was originally a fork of the Thatware news portal system by David Norman.

Clonezilla is an open-source suite of disk cloning, disk imaging and system deployment utilities. Clonezilla Server Edition uses multicast technologies to deploy a single image file to a group of computers on a local area network. Clonezilla was designed by Steven Shiau and developed by the NCHC Free Software Labs in Taiwan.

Avidemux is an application for non-linear video editing and transcoding multimedia files. The developers intend it as "a simple tool for simple video processing tasks" and to allow users "to do elementary things in a very straightforward way". It is written in C++ and uses Qt for its graphical user interface (GUI), and FFmpeg for its multimedia functions. Since version 2.4, it has two user interfaces: a GUI and a command-line interface. Since version 2.6, the original GTK port has been unmaintained and is now discontinued. It is free and open-source software released with a GNU General Public

FreeMind is a free mind mapping application written in Java, which is further developed by the fork Freeplane. FreeMind itself was last updated in 2014. FreeMind is licensed under the GNU General Public License Version 2. It provides extensive export capabilities. It runs on Microsoft Windows, Linux, and macOS via the Java Runtime Environment.

MyPaint is a free and open-source raster graphics editor for digital painting. It is available for Linux, macOS, and Windows.