JaxoDraw: Feynman Diagrams made easy!
Bar Code (1D or 2D) generator in pure Ada
Another drawing editor for LaTeX with PSTricks & TikZ
Javascript Matrix and Vector library for High Performance WebGL apps
Vector drawing program for LaTeX using PSTricks
Cross Platform GUI Toolkit
The working version of Sodipodi for Windows 7 and 10.
A graphical Finite State Machine (FSM) designer.
Free drawing software for Windows, Mac OS X, and Linux
Output Processing script from Java AWT/Swing paint call
Advanced script editor IDE for squirrel/pawn/lua and more
automata editor
The X3DV Module Suite is a free set of Netbeans modules to code in X3D
Vector based drawing software designed for RPGs