Light-weight 3D Scene graph library with renderer in WebGL

Simple WebSockets server in nodejs that bounces packets with some extra functionality (rooms and http request to store permanent information)

A graph node engine and editor written in Javascript similar to PD or UDK Blueprints, comes with its own editor in HTML5 Canvas2D. The engine can run client side or server side using Node. It allows to export graphs as JSONs to be included in applications independently.

Javascript Library to create webapps with a desktop look-alike interface. All the widgets are created from Javascript instead of using HTML.

C++ from the web: CodeMirror + Emscripten

2D Game Engine in WebGL

Technical documentation that just works

Very simple browser operative system in javascript. Applications are executed in Workers.

A full open source 3D graphics editor in the browser, with scene editor, coding pad, graph editor, virtual file system, and many features more.

A lightweight web IDE (mostly a coding editor) based in monaco-editor (with a one-file server made in php). It allows to navigate the server with commands.

Lightweight 3d physics engine for javascript

A WebGL 3D Engine library with component-based node hierarchy. Used by WebGLStudio

An inmediate mode GUI that works on top of Canvas2D (it can also work in WebGL)

Lightweight Javascript WebGL library for handling Context, Meshes, Textures and Shaders. Relies on glMatrix 2.0, very easy to use.

A wiki system with complex functionality for simple integration and a superb interface. Store your knowledge with style: Use django models.

Library with client (js) and serverside (php) to have a filesystem with previews, quotas, metadata, and multiple users with privileges.

Ports (almost) all Canvas2D functions to the GPU so it can be mixed with a WebGL canvas.