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!
Guitare rosette design
Cross Platform GUI Toolkit
ZuneFIG is the Zunified version of old xfig conversion to amiga
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.