Swiss army knife of image processing
Hewlett-Packard's Linux imaging and printing software
A portable, multi-platform, command-line driven graphing utility
An award-winning drawing program for children of all ages
Open Source Solid Modeling CAD
Display, convert, and edit raster image and vector image files
Image browser and viewer for Unix - X/Motif
LDraw™ editor for LEGO® style digital building instructions.
Cross Platform GUI Toolkit
A project that has moved to GitHub
3D Without Boundaries
3D Multiplayer Hover Soccer