This page will list some of the large-scale uses of Scheme, in both commercial applications and prominent free software.

The GIMP is an image manipulation program freely redistributable under the GNU Public Licence. It provides extensive scripting capabilities via an embedded Scheme interpreter, allowing users to create images procedurally from a Scheme program.

The Scheme window manager, scwm, is a window manager for X-Windows written in Guile. Users can configure Scwm by writing Scheme code.

GNOME AisleRiot uses Scheme for most of its programming. (Reported by Shlomi Fish (`shlomif@vipe.technion.ac.il`).)

The Festival speech synthesis package probably uses Scheme; at least, that's what its command line interface uses. (Reported by Nathan Valentine `nrvale0@pop.uky.edu`.)

The Sawfish window manager is written in Lisp. (Reported by Nathan Valentine `nrvale0@pop.uky.edu`.)