An award-winning drawing program for children of all ages
Drawing, graphics conversion, software development, administration.
A simple LaTeX {picture} drawing tool
very good CAD software
2D CAD for precise drawing
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
A hybrid graphics editor and programming environment
Madeline 2.0 Pedigree Drawing Engine (PDE)
Free drawing software for Windows, Mac OS X, and Linux
dedalo is a 2d cad drawing software written in python3.
OBSOLETE; try http://drawpile.net/ instead!