A jQuery plugin that makes the HTML5 canvas easy to work with.
BonsaiJS is a graphics library and renderer
A JS client-side library for creating graphic and interactive experiences, based on the core principles of Processing. http://twitter.com/p5xjs —
2D physics engine for games
Cartoon style drawing for HTML5 Canvas & Raphael.js & D3.js & SVG.js
Simple isometric graphics library for HTML5 canvas
Images go whoa with lots of floaty dots
Clientside grayscale images on any browser
SVGO is a Nodejs-based tool for optimizing SVG vector graphics files.