Another drawing editor for LaTeX with PSTricks & TikZ
Model Railway CAD program
JaxoDraw: Feynman Diagrams made easy!
Cross Platform GUI Toolkit
Vector drawing program for LaTeX using PSTricks
A graphical Finite State Machine (FSM) designer.
Font editor
Jade is a cross-platform diagram editor built on the Qt framework.
Free drawing software for Windows, Mac OS X, and Linux
Interactive designer for Celtic knots
Create and edit SVG graphics directly in ownCloud. Based on svg-edit.
The X3DV Module Suite is a free set of Netbeans modules to code in X3D