HTML5 canvas based smooth signature drawing
Drawing, graphics conversion, software development, administration.
very good CAD software
2D CAD for precise drawing
The Pencil Project's unique mission is to build a free tool
Vector drawing program for LaTeX using PSTricks
Syntax Tree Drawing Software (Linguistics)
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