Desktop and Mobile HTML5 game framework. A fast, free and fun open source framework for Canvas and WebGL powered browser games.

PixiJS - The HTML5 Creation Engine. Create beautiful digital content with the fastest, most flexible 2D WebGL renderer.

Releated Github repo with documentation: https://github.com/thi-ng/charlie

J3D - javascript webGL engine

JebGL is a piece of Javascript which lets you run your WebGL apps in browsers lacking WebGL support without having to modify your existing code! Behind the scenes JebGL uses a fallback Java applet to emulate the WebGL canvas if needed, and the Java applet runs hardware accelerated on all platforms using JOGL.