List of free and open-source software packages

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This article is about software free to be modified and distributed. For examples of software free in the monetary sense, see List of freeware.

This is a list of free and open-source software packages, computer software licensed under free software licenses and open-source licenses. Software that fits the Free Software Definition may be more appropriately called free software; the GNU project in particular objects to their works being referred to as open-source.[1] For more information about the philosophical background for open-source software, see free software movement and Open Source Initiative. However, nearly all software meeting the Free Software Definition also meets the Open Source Definition and vice versa. A small fraction of the software that meets either definition is listed here.

Some of the open-source applications are also the basis of commercial products, shown in the List of commercial open-source applications and services.


Applied fields[edit]

Artificial intelligence[edit]

  • General
    • OpenCog A project that aims to build an artificial general intelligence (AGI) framework. OpenCog Prime is a specific set of interacting components designed to give rise to human-equivalent artificial general intelligence.
  • Computer Vision
    • AForge.NET Computer Vision, Artificial Intelligence and Robotics library for the .NET Framework
    • OpenCV Computer Vision Library in C++
  • Machine Learning
  • Planning
    • TREX Reactive planning
  • Robotics
    • ROS Robot Operating System


Electronic design automation (EDA)[edit]

Computer simulation[edit]

  • Blender; 3D modeling software written in C, C++ and Python containing cloth, hair, fluid and rigid body simulation techniques
  • SimPy; queue-theoretic event-based simulator written in Python
  • flightgear is an open-source flight simulator written for Windows, Mac OS X, and GNU/Linux.


Integrated Library Management Software[edit]

Image editor[edit]

  • Darktable — Digital image workflow management, including RAW processing.
  • digiKam — Integrated photography toolkit including editing capabilities.
  • GIMP — GNU Image Manipulation Program
  • Inkscape — An open-source vector graphics editor.


For a more comprehensive list, see List of open-source software for mathematics.

Reference management software[edit]


Main category: Free science software



Geographic Information Systems[edit]

Main category: Free GIS software

Grid computing[edit]

  • P-GRADE Portal — Grid portal software enabling the creation, execution and monitoring of workflows through high-level Web interfaces

Microscope image processing[edit]

Molecular dynamics[edit]

Molecule viewer[edit]



Main category: Free plotting software

Risk Management[edit]



Quantum chemistry[edit]

Assistive technology[edit]

Speech (synthesis and recognition)[edit]

Other assistive technology[edit]

Data storage and management[edit]

Backup software[edit]

Main category: Free backup software

Database management systems (including administration)[edit]

Data mining[edit]

Data Visualization Components[edit]

  • ParaView plotting and visualization functions developed by Sandia National Laboratory, capable of massively parallel flow visualization utilizing multiple computer processors
  • VTK is a toolkit for 3D computer graphics, image processing and visualization.

Digital Asset Management software[edit]

  • OpenDAM — Digital Asset Management for enterprise content management integration, to manage image, pictures, and video files.

Disk partitioning software[edit]

Enterprise search engines[edit]

ETLs (Extract Transform Load)[edit]

File archivers[edit]

File Systems[edit]

Networking and Internet[edit]




Main category: Free email software

File transfer[edit]

Instant messaging[edit]

IRC Clients[edit]


RSS/Atom readers/aggregators[edit]

Peer-to-peer file sharing[edit]

Portal Server[edit]

Remote access and management[edit]

Routing software[edit]

Main category: Free routing software

Web browsers[edit]

Main category: Free web browsers




  • Apache Cocoon — a web application framework
  • Apache — the most popular web server
  • AWStats — a log file parser and analyzer
  • BookmarkSync — a tool for browsers
  • Cherokee — Speedy, feature rich HTTP Server
  • curl-loader — a powerful HTTP/HTTPS/FTP/FTPS loading and testing open-source tool
  • Hiawatha — Secure, high performance and easy-to-configure HTTP server
  • HTTP File Server — a user friendly file server software with a drag and drop interface
  • lighttpd — Resource sparing but also fast and full featured HTTP Server
  • Lucee — CFML Application Server
  • nginx — lightweight, high performance web server/reverse proxy and e-mail (IMAP/POP3) proxy
  • NetKernel — an internet application server
  • Piwik — a web analytics system
  • Qcodo — a PHP5 framework
  • Squid (software) — web proxy cache
  • XAMPP — a package of web applications including Apache and MySQL
  • Zope — a web application server

Other networking programs[edit]


Educational suites[edit]

  • ATutor — a web-based Learning Content Management System (LCMS)
  • Chamilo — a web-based e-learning and content management system
  • Claroline — a collaborative Learning Management System
  • DoceboLMS
  • eFront — an icon-based learning management system
  • FlightPath — academic advising software for universities
  • GCompris
  • Gnaural — Brainwave entrainment software
  • IUP Portfolio
  • ILIAS — a web-based learning management system (LMS)
  • Moodle — a free and open-source learning management system
  • OLAT — a web-based Learning Content Management System
  • Omeka
  • openSIS — a web-based Student Information and School Management system
  • Sakai Project — a web-based learning management system
  • SWAD - a web-based learning management system
  • Tux Paint — a paint application for 3–12 year olds


Learning support[edit]



Other educational programs[edit]

File managers[edit]

Main category: Free file managers


Application layer[edit]


Graphical user interface[edit]

Desktop environments[edit]

Window managers[edit]

Main category: Free X window managers

Windowing system[edit]

Main category: Free windowing systems


Main category: Free groupware

Content management systems[edit]

Wiki software[edit]

Main category: Free wiki software

Healthcare software[edit]


2D animation[edit]

3D animation[edit]

Audio editors, audio management[edit]

CD/USB-writing software[edit]

Flash animation[edit]


Main category: Free graphics software

Image galleries[edit]

Main category: Free image galleries

Image viewers[edit]

Multimedia codecs, containers, splitters[edit]


Video converters[edit]

Video editing[edit]

Video encoders[edit]

Video players[edit]

Other media packages[edit]

Operating systems[edit]

Be advised that available distributions of these systems can contain, or offer to build and install, added software that is neither free software nor open-source.

Emulation and Virtualisation[edit]

Password management[edit]

Personal information managers[edit]

Programming language support[edit]

Bug trackers[edit]

Code generators[edit]

Documentation generators[edit]

  • Doxygen : a tool for writing software reference documentation. The documentation is written within code.
  • Mkd : The software documentation is extracted from the sources files, from pseudocode or comments.
  • Natural Docs : claims to use a more natural language as input from the comments, hence its name.

Configuration software[edit]

Debuggers (for testing and trouble-shooting)[edit]

Integrated development environments[edit]

Version control systems[edit]




Data loss prevention[edit]

Data recovery[edit]


Disk erasing[edit]


Disk encryption[edit]


Network and security monitoring[edit]

Secure Shell (ssh)[edit]

Other security programs[edit]

Main category: Free security software


Bible study tools[edit]


See also[edit]

General directories[edit]


  1. ^ Richard Stallman (July 13, 2011). "Why Open Source misses the point of Free Software". Retrieved August 24, 2011. 

External links[edit]

General Directories[edit]

  • Free Software Directory — The Free Software Directory of the Free Software Foundation.
  • Open Source Software Directory — Provides a list of open-source software organized by categories.
  • Open Source Living — Open Source Living is a community-driven dynamic archive of open-source software.
  • Ohloh — Ohloh is an open-source directory that anyone can edit.
  • AlternativeTo - user-edited directory of alternatives to popular software - both open-source and non-open-source. Alternatives are listed under the software they are considered an alternative to, rather than requiring the user to browse to a relevant category.

Open-source for Windows[edit]