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

Artificial intelligence

  • 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)

Computer simulation

  • Blender; 3D modeling software written in C, C++ and Python that can make animations and graphics for games
  • 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 System

Image editor

  • 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


Main category: Free science software



Geographic Information Systems

Main category: Free GIS software

Grid Computing

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

Microscope image processing

Molecular dynamics

Molecule viewer



Main category: Free plotting software



Assistive technology

Speech (synthesis and recognition)

Other assistive technology

Data storage and management

Backup software

Main category: Free backup software

Database management systems (including administration)

Data mining

Data Visualization Components

  • 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

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

Disk partitioning software

Enterprise search engines

ETLs (Extract Transform Load)

File archivers

File Systems

Networking and Internet




Main category: Free email software

File transfer

Instant messaging

IRC Clients


RSS/Atom readers/aggregators

Peer-to-peer file sharing

Portal Server

Remote access and management

Routing software

Main category: Free routing software

Web browsers

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
  • CougarXML — a Javascript framework for parsing and manipulating XML code, based on W3C DOM Level-3 specifications.
  • 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
  • ICDL Crawling — a distributed web crawler based on Website Parse Template
  • lighttpd — Resource sparing but also fast and full featured HTTP 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
  • Railo — CFML Application Server
  • Squid (software) — web proxy cache
  • XAMPP — a package of web applications including Apache and MySQL
  • Zope — a web application server

Other networking programs


Educational suites

  • ATutor — a web-based Learning Content Management System (LCMS)
  • Chamilo — a web-based e-learning and content 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
  • Omeka
  • openSIS — a web-based Student Information and School Management System 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



Other educational programs

File managers

Main category: Free file managers


Application layer


Graphical user interface

Desktop environments

Window managers

Main category: Free X window managers

Windowing system

Main category: Free windowing systems


Main category: Free groupware

Content management systems

Wiki software

Main category: Free wiki software

Healthcare software


2D animation

3D animation

Audio editors / audio management

Main article: Free audio software

CD/USB-writing software

Flash animation


Main category: Free graphics software

Image galleries

Main category: Free image galleries

Image viewers

Multimedia codecs / containers / splitters


Video converters

Video editing

Video encoders

Video players

Other media packages

Operating systems

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

Password management

Personal information managers

Programming language support

Bug trackers

Code generators

Configuration software

Debuggers (for testing and trouble-shooting)

Integrated development environments

Version control systems




Data loss prevention

Data recovery


Disk erasing


Disk encryption


Network and security monitoring

Secure Shell (ssh)

Other security programs

Main category: Free security software


Bible study tools


See also

General directories


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

External links

General Directories

Open source for Windows