Openbox manages your windows and works harmoniously with the GNOME and KDE desktop environments and applications, complying with the latest standards for window management. It has a Blackbox-like appearance, with enhanced capabilities for thrilling themes. It is highly configurable, allowing for all aspects of user interaction to be customised.

Openbox is a free window manager for the X Window System, licensed under the GNU General Public License. Openbox was originally derived from Blackbox 0.65.0, but has been totally rewritten in the C programming language and, since version 3.0, is not based upon any code from Blackbox.

openBox is an open-source box office platform for various performance venues. Features include online ticketing, reserved seating, and much more.