A portable, multi-platform, command-line driven graphing utility
Powerful desktop publishing software
Advanced PNG optimization program
An award-winning drawing program for children of all ages
Swiss army knife of image processing
FlightGear Flight Simulator: free open-source multiplatform flight sim
Panorama photo stitcher
A premier mind-mapping software written in Java
Professional Audio/Video/Graphics
a parametric 3D CAD modeler
Open Source Solid Modeling CAD
Open and edit the archive files used in over 5700 games.
A collection of packages providing extra functionality for GNU Octave
xBRZ: "Scale by rules" - high quality image upscaling filter by Zenju
3D Engine c++
2D & 3D TeX-Aware Vector Graphics Language
An interactive viewer for three-dimensional chemical structures.