Free drawing software for Windows, Mac OS X, and Linux
make a kaleidoscope from any image
A Gimp plugin that simulates a HDR image
Metadata (EXIF, XMP, IPTC) editor, Geotagger, Publisher
dedalo is a 2d cad drawing software written in python3.
IDE for creating interactive Flash and HTML5 content
Labcoat; the VHDL graphic emulator.