Cheetah3D is a lean, fast and elegant 3D modeling, rendering and animation package for Mac OS X with an easy learning curve. It offers many tools from polygon editing over advanced subdivision modeling to boolean operations and Beziere splines. The Javascript support allows you to extend Cheetah3D by yourself with custom file loaders, exporters, tools and so on. It also offers many common file loaders and exporters like .fbx, .3ds, .dxf, .obj, .3dmf, .sia etc.