The sequel to shader-school: Learn the WebGL API
A workshopper for GLSL shaders and graphics programming
GLOW is a WebGL wrapper, which focuses on easy creation and use of shaders.
A WebGL Framework for Data Visualization, Creative Coding and Game Development
A lightweight WebGL library
A Tiny WebGL helper Library
CSS 3D Lighting Engine
An extensible WebGL-based engine for high-detail 3D visualisation
MathBox is a (work in progress) library for making presentation-quality math diagrams in WebGL.