2D CAD for precise drawing
An award-winning drawing program for children of all ages
Drawing, graphics conversion, software development, administration.
very good CAD software
A simple LaTeX {picture} drawing tool
The Pencil Project's unique mission is to build a free tool
a race scenario drawing tool
Vector drawing program for LaTeX using PSTricks
Simple and intuitive 2D vector drawing for electronics and not only.
Pencil2D is a cross-platform animation/drawing application.
Syntax Tree Drawing Software (Linguistics)
Simple drawing program for Linux
Madeline 2.0 Pedigree Drawing Engine (PDE)
Free drawing software for Windows, Mac OS X, and Linux
Simple and basic whiteboard drawing app in html5.
dedalo is a 2d cad drawing software written in python3.
OBSOLETE; try http://drawpile.net/ instead!