Exports objects from Blender to WebGL JavaScript. Currently supports native WebGL, GLGE and SceneJS.

• all selected meshes or all meshes in the scene
• vertices
• indices
• normals
• UV coordinates
• vertex colors
• simple frame animation (native WebGL only, use with care)

• Basic native WebGL example
• SceneJS example

Here's a how-to in Japanese (WebGL3DモデルをWebGL向けのJavaScriptにエクスポート出来る「Blender to WebGL exporter」を使ってみた)