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GNU is an operating system that is free software—that is, it respects users' freedom. The GNU operating system consists of GNU packages (programs specifically released by the GNU Project) as well as free software released by third parties. The development of GNU made it possible to use a computer without software that would trample your freedom.


Try GNU/Linux

 [Screenshot of PureOS 8 with GNOME 3 desktop] 

PureOS 8 with GNOME 3 desktop, PureBrowser (web browser), and Gimp (image editor)

 [Screenshot of Trisquel 8 with MATE desktop]   [Screenshot of GuixSD 0.15 with GNOME 3 desktop]   [Screenshot of PureOS 8 with GNOME 3 desktop] 
Trisquel 8 & MATE GuixSD & GNOME 3 PureOS 8 & GNOME 3

... or Try parts of GNU


The free software movement campaigns to win for the users of computing the freedom that comes from free software. Free software puts its users in control of their own computing. Nonfree software puts its users under the power of the software's developer. See the video explanation.



自由ソフトウェアは自由の問題であり、値段の問題ではありません。この考え方を理解するには、「ビール飲み放題(free beer)」ではなく、「言論の自由(free speech)」を考えてください。


  • どんな目的に対しても、プログラムを望むままに実行する自由 (第零の自由)。
  • The freedom to study how the program works, and change it so it does your computing as you wish (freedom 1). Access to the source code is a precondition for this.
  • The freedom to redistribute copies so you can help others (freedom 2).
  • The freedom to distribute copies of your modified versions to others (freedom 3). By doing this you can give the whole community a chance to benefit from your changes. Access to the source code is a precondition for this.





“GNU”という名称は、“GNU's Not Unix”(GNUはUnixではない)の再帰頭字語です。“GNU”はグヌー[ˈgnuː]と発音します。一音節で、“grew”のrnで置き換えて言うようにです。


GNU自身のカーネル、The Hurdは1990年に(Linuxが開始される前に)開始されました。興味深い技術的プロジェクトですので、ボランティアによってHurdの開発は続きます。


Planet GNU RSSフィード

Gnuastro 0.9 released : The 9th release of GNU Astronomy Utilities (Gnuastro) is now available for download. Please see the announcement for details.

Richard Stallman - "Computing, Freedom, and Privacy" (Lausanne, Switzerland) : The way digital technology is developing, it threatens our freedom, within our computers and in the int...

Malfunction in ghm-planning (at) gnu.org : Due to a problem in the alias configuration, mails sent to ghm-planning before Sun Apr 14 8:00 CEST have been silently dropped. If you sent a registr...

For more news, see Planet GNU and the list of recent GNU releases.



Can you contribute to any of these High Priority Areas?

  • Free phone operating system,
  • decentralization, federation and self-hosting,
  • free drivers, firmware and hardware designs,
  • real-time voice and video chat,
  • encourage contribution by people underrepresented in the community,
  • and more.

Can you help maintain a GNU package?

See the package web pages for more information.

Recent GNU releases

Short descriptions for all GNU packages



Guile-CV is a Computer Vision functional programming library for the Guile Scheme language. Guile-CV is based on Vigra (Vision with Generic Algorithms). It comprises a direct binding to vigra_c (a C wrapper to a subset of the Vigra library), and a higher level API written in Guile Scheme. (doc)


[FSFロゴ] “The Free Software Foundation (FSF) is a nonprofit with a worldwide mission to promote computer user freedom. We defend the rights of all software users.”


The FSF also has sister organizations in Europe, Latin America and India.
Feel free to join them!