Model Railway CAD program
2D & 3D TeX-Aware Vector Graphics Language
JaxoDraw: Feynman Diagrams made easy!
A simple LaTeX {picture} drawing tool
Cross Platform GUI Toolkit
Another drawing editor for LaTeX with PSTricks & TikZ
Vector drawing program for LaTeX using PSTricks
Simple and intuitive 2D vector drawing for electronics and not only.
A graphical Finite State Machine (FSM) designer.
Free drawing software for Windows, Mac OS X, and Linux
Interactive designer for Celtic knots