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.
A full open source 3D graphics editor in the browser, with scene editor, coding pad, graph editor, virtual file system, and many features more.
Ports (almost) all Canvas2D functions to the GPU so it can be mixed with a WebGL canvas.
A WebGL 3D Engine library with component-based node hierarchy. Used by WebGLStudio
Javascript Library to create webapps with a desktop look-alike interface. All the widgets are created from Javascript instead of using HTML.
Library with client (js) and serverside (php) to have a filesystem with previews, quotas, metadata, and multiple users with privileges.
Light-weight 3D Scene graph library with renderer in WebGL
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.
Simple WebSockets server in nodejs that bounces packets with some extra functionality (rooms and http request to store permanent information)
A C64 Music chip 6581/8580 visualizer in javascript. It allows to playback SID files and shows the state of the chip during the playback.