Model Railway CAD program
Cross Platform GUI Toolkit
Former project page
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
Interactive designer for Celtic knots
Output Processing script from Java AWT/Swing paint call
A powerful C++ class library for image manipulation
Open Source CAD
Vector based drawing software designed for RPGs