Free and open source voxel art tools - editor, thumbnailer and format
Image management application
Display, convert, and edit raster image and vector image files
Convert Netpbm programs to GIMP plug-ins
Unofficial Windows builds of FontForge
A GIMP based, studio designed for industry pros & power users
Free yourself
A full featured cross-platform image library
Free drawing software for Windows, Mac OS X, and Linux
Not your usual Architectural Modeler
Convert jpeg(exif/jfif)/mpo/jps image to/from xml