Jade is a cross-platform diagram editor built on the Qt framework.
Create vector shapes for gimp easily
Free drawing software for Windows, Mac OS X, and Linux
Pattern making software for the fashion industry.
Batch, tunable, crossplatform SVG cleaning program
Interactive designer for Celtic knots
Not your usual Architectural Modeler
Output Processing script from Java AWT/Swing paint call
Advanced script editor IDE for squirrel/pawn/lua and more
Filtered is a tool for editing SVG filters
a HTML/JS SVG Spirograph
Business graphics diagramming application + customizable shape lib.
Create and edit SVG graphics directly in ownCloud. Based on svg-edit.
dedalo is a 2d cad drawing software written in python3.