2D & 3D TeX-Aware Vector Graphics Language
Another drawing editor for LaTeX with PSTricks & TikZ
Vector drawing program for LaTeX using PSTricks
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.
Free drawing software for Windows, Mac OS X, and Linux
dedalo is a 2d cad drawing software written in python3.
Inkscape extension to add and edit GNUplot graphs
A tool written in Python to draw Splines in MAXONs Cinema 4D