X.Org Server
| Developer(s) | X.Org Foundation |
|---|---|
| Initial release | 6 April 2004 |
| Stable release | 21.1.18
/ 18 June 2025 |
| Repository | |
| Written in | C |
| Operating system | Cross-platform |
| Size | 3.7 MiB |
| Available in | English |
| Type | Display server |
| License | MIT License |
| Website | x |
X.Org Server is the free and open-source implementation of the X Window System (X11) display server stewarded by the X.Org Foundation.
Implementations of the client-side X Window System protocol exist in the form of X11 libraries, which serve as helpful APIs for communicating with the X server. Two such major X libraries exist for X11. The first of these libraries was Xlib, the original C language X11 API, but another C language X library, XCB, was created later in 2001. Other smaller X libraries exist, both as interfaces for Xlib and XCB in other languages, and as smaller standalone X libraries.
The services with which the X.Org Foundation supports X Server include the packaging of the releases; certification (for a fee); evaluation of improvements to the code; developing the web site, and handling the distribution of monetary donations. The releases are coded, documented, and packaged by global developers.