An extensible Markdown Editor, Viewer and Weblog Publisher for Windows
Another drawing editor for LaTeX with PSTricks & TikZ
2D CAD for precise drawing
Bar Code (1D or 2D) generator in pure Ada
Toolkit for working with and mapping geospatial data
JaxoDraw: Feynman Diagrams made easy!
Vector drawing program for LaTeX using PSTricks
Standalone software for photo editing and digital painting.
Depth map hole filling using graph cuts