Retro Computer Image Library
Spritesheet Cutter Level Editor Animation Tester gridcutter
Open Source Solid Modeling CAD
Various small and useful command-line utilities
Multi-core image resizer and rotator. Go crunch 'em!
Image Converter - Back2d
Powerful Windows shell extension allowing to preview images.
Uses Wikimedia picture of the day for desktop wallpaper
The Utah Raster Toolkit 3.0, patchlevel 2
GUI to combine photos to get deeper DOF or HDR.
Split Photo in more A4 sheets