Mutter (software)

Mutter
Developer(s)GNOME Project
Initial releaseApril 2011 (2011-04)
Stable release
47.6  / 5 March 2025 (5 March 2025)
Preview release
48.rc  / 4 March 2025 (4 March 2025)
Repositorygitlab.gnome.org/GNOME/mutter
Written inC
Operating systemUnix-like
Size40.2 kB (amd64 .deb package)
Type
LicenseGPL-2.0-or-later
Websitemutter.gnome.org

Mutter is a window manager initially designed and implemented for the X Window System, but then evolved to be a Wayland compositor. It became the default window manager in GNOME 3, replacing Metacity which used GTK for rendering. "Mutter" is a combination of "Metacity" and "Clutter".