Liquidiser

http://en.wikipedia.org/wiki/Liquidiser

About

Liquidiser allows you to read .blend files and have access to all raw data from a java application.

A converter to M3G JSR-184 file format (with an additional XML file for all data which the M3G can't store) is also provided which uses M3X (https://m3x.dev.java.net/) for exporting binary files.

Status

• full access to data stored in .blend files (including Blender 2.5 and later versions)
• partial implementation of accessibility layer (it'd be impractical to support all of Blender's features)
• M3G converter supports most commonly used data types (meshes, textures, skeletal animation)