"XDG" redirects here. For the game development division External Development Group, see THQ.

The logo of
Type of site
Software development management system
Available in English
Created by Havoc Pennington
Alexa rank 27,110 (as of November 2016)[1]
Commercial No
Launched March 2000 (2000-03)
Current status Online (fd.o) is a project to work on interoperability and shared base technology for free software desktop environments for the X Window System (X11) on Linux and other Unix-like operating systems. It was founded by Havoc Pennington from Red Hat in March 2000. The project is hosted by Software in the Public Interest, the non-profit organization created by the Debian Project.

There are many development frameworks for X, and this is unlikely to change. The organization seeks to ensure that differences in development frameworks are not user-visible.

Widely used open-source X desktop projects—such as GNOME, KDE, and Xfce—are collaborating with the project. In 2006, the project released Portland 1.0 (xdg-utils), a set of common interfaces for desktop environments.[2] was formerly known as the X Desktop Group, and the abbreviation "XDG" remains common in their work.

Hosted projects provides hosting for a number of relevant projects.[3][4] These include:

Windowing system and graphics

Software related to windowing systems and graphics in general


Also, Avahi (a free Zeroconf implementation) started as a fd.o project but has now moved elsewhere.

Stated aims

The project aims to catch interoperability issues much earlier in the process. It is not for legislating formal standards.

  1. Collect existing specifications, standards and documents related to X desktop interoperability and make them available in a central location;
  2. Promote the development of new specifications and standards to be shared among multiple X desktops;
  3. Integrate desktop-specific standards into broader standards efforts, such as Linux Standard Base and the ICCCM;
  4. Work on the implementation of these standards in specific X desktops;
  5. Serve as a neutral forum for sharing ideas about X desktop technology;
  6. Implement technologies that further X desktop interoperability and free X desktops in general;
  7. Promote X desktops and X desktop standards to application authors, both commercial and volunteer;
  8. Communicate with the developers of free operating system kernels, the X Window System itself, free OS distributions, and so on to address desktop-related problems;
  9. Provide source repositories (git),[8] and CVS[9] web hosting, Bugzilla, mailing lists, and other resources to free software projects that work toward the above goals.

See also


  1. " Site Info". Alexa Internet. Retrieved 2016-06-18.
  2. Portland points desktop Linux at $10 billion market,, 11 October 2006
  3. "FreedesktopProjects". Retrieved 2013-09-22.
  4. "Software". Retrieved 2013-09-22.
  5. "Glamor". 17 May 2013. Retrieved 31 October 2015.
  6. "Pixman".
  7. "[ANNOUNCE] libinput 0.4.0". 2014-06-24.
  8. " git". Retrieved 2013-09-22.
  9. "ViewVC Repository Listing". Retrieved 2013-09-22.
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