“JSON Exporter for Autodesk® Fusion 360™” exports the model to a JSON (.json) file.

It has the following features: 

1. Part and Face level color support.
2. Cumulative transformation.
3. 4.5 version JSON format support.
4. Supports both part and assembly models.
5. Visibility of nodes.
6. Face level transparency
7. There is always a default compression which helps reduces the file size as much as possible.