Window managers that use GTK

Openbox is a free, stacking window manager for the X Window System, licensed under the GNU General Public License. Originally derived from Blackbox 0.65.0 (a C++ project), Openbox has been completely re-written in the C programming language and since version 3.0 is no longer based upon any code from Blackbox. Since at least 2010, it has been considered feature complete, bug free and a completed project. Occasional maintenance is done to keep it working, but only if needed.

IceWM is a stacking window manager for the X Window System, originally written by Marko Maček. It was written from scratch in C++ and is released under the terms of the GNU Lesser General Public License.

Metacity (pronounced ) was the default window manager used by the GNOME 2 desktop environment until it was replaced by Mutter in GNOME 3. It is still used by GNOME Flashback, a session for GNOME 3 that provides a similar user experience to the Gnome 2.x series sessions.

GNOME window manager and display server

AfterStep is a stacking window manager for the X Window System. The goal of AfterStep's development is to provide for flexibility of desktop configuration, improved aesthetics and efficient use of system resources, and was used in such distributions as MachTen. AfterStep originally was a variant of FVWM modified to resemble NeXTSTEP, but as the development cycle progressed, it diverged from its FVWM roots. In 2000, Linux website TuxRadar selected AfterStep as one of the year's best window managers, praising it as "fast and reliable, with a huge range of configuration options and the ability to

window manager for Linux and other Unix