1. Canvas2dtowebglPorts (almost) all Canvas2D functions to the GPU so it can be mixed with a WebGL canvas.
2. Litegraph.jsA 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.
3. Litegui.jsJavascript Library to create webapps with a desktop look-alike interface. All the widgets are created from Javascript instead of using HTML.
4. Rendeer.jsLight-weight 3D Scene graph library with renderer in WebGL
5. Webglstudio.jsA full open source 3D graphics editor in the browser, with scene editor, coding pad, graph editor, virtual file system, and many features more.
6. Litegl.jsLightweight Javascript WebGL library for handling Context, Meshes, Textures and Shaders. Relies on glMatrix 2.0, very easy to use.
7. Litescene.jsA WebGL 3D Engine library with component-based node hierarchy. Used by WebGLStudio
8. wideA 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.
9. litefilesystem.jsLibrary with client (js) and serverside (php) to have a filesystem with previews, quotas, metadata, and multiple users with privileges.