FigCraft: interface design and prototyping
Draw vector graphics to scale using a descriptive language
2D & 3D TeX-Aware Vector Graphics Language
Model Railway CAD program
Swiss army knife of image processing
Display, convert, and edit raster image and vector image files
JaxoDraw: Feynman Diagrams made easy!
A simple LaTeX {picture} drawing tool
Cross Platform GUI Toolkit
Another drawing editor for LaTeX with PSTricks & TikZ
Toolkit for working with and mapping geospatial data
A ZX Spectrum UDG creator
Vector drawing program for LaTeX using PSTricks
Simple and intuitive 2D vector drawing for electronics and not only.
An infinite-canvas paint program