A JavaScript library dedicated to graph drawing
A renderer agnostic two-dimensional drawing api for the web
Javascript Canvas Library and SVG-to-Canvas Parser
very good CAD software
svg editor: Easily create documents for math, physics, chemistry...
The Pencil Project's unique mission is to build a free tool
JavaScript library to make drawing animation on SVG
JavaScript toolkit for creating interactive real-time graphs
JavaScript vector library
Fractals generator with powerful functionality.
Free OMR - OCR web sofware based on javascript and PHP