Drawing, graphics conversion, software development, administration.
An award-winning drawing program for children of all ages
very good CAD software
2D CAD for precise drawing
Professional vector flow chart drawing software
The Pencil Project's unique mission is to build a free tool
Vector drawing program for LaTeX using PSTricks
A hybrid graphics editor and programming environment
Free drawing software for Windows, Mac OS X, and Linux
A drawer for origami crease pattern
dedalo is a 2d cad drawing software written in python3.
Vector based drawing software designed for RPGs