phoria.js

JavaScript library for simple 3D graphics and visualisation on a HTML5 canvas 2D renderer. It does not use WebGL. Works on all HTML5 browsers, including desktop, iOS and Android.

webglshaders

WebGL Shader demos - GPU rendering shader experiments with procedural 3D scene generation using ray marching and distance field (also known as 'sphere tracing') rendering techniques.

CanvasMark

CanvasMark 2013 - Benchmark tool for HTML5 canvas 2D performance testing. As used by tomshardware.com, Mozilla and Chromium.

arena5

Arena5 HTML5 Canvas JavaScript game - twin stick shooter in the style of 'geometry wars'.

Asteroids-Reloaded

Asteroids [Reloaded] - HTML5 Canvas JavaScript game