darktable is an open source photography workflow application
Free and open source vector graphics editor for Windows, Mac, & Linux
JaxoDraw: Feynman Diagrams made easy!
2D & 3D TeX-Aware Vector Graphics Language
A simple multi-platfom 2D Animation Software for all ages!
Another drawing editor for LaTeX with PSTricks & TikZ
Cross Platform GUI Toolkit
Vector drawing program for LaTeX using PSTricks
Simple and intuitive 2D vector drawing for electronics and not only.
Extensible vector graphics editor with Latex text support.
A graphical Finite State Machine (FSM) designer.
Interactive designer for Celtic knots
Advanced script editor IDE for squirrel/pawn/lua and more
dedalo is a 2d cad drawing software written in python3.