darktable is an open source photography workflow application
2D & 3D TeX-Aware Vector Graphics Language
Model Railway CAD program
converts PostScript or PDF files to other vector graphics formats
A simple multi-platfom 2D Animation Software for all ages!
Cross Platform GUI Toolkit
Former project page
Extensible vector graphics editor with Latex text support.
A graphical Finite State Machine (FSM) designer.
Jade is a cross-platform diagram editor built on the Qt framework.
Free drawing software for Windows, Mac OS X, and Linux
Pattern making software for the fashion industry.
Interactive designer for Celtic knots
Not your usual Architectural Modeler