FBX to OBJ converter

FBX is Autodesk's interchange format for meshes, materials, rigs, and animation. Maya, 3ds Max, Blender, Unity, and Unreal all read and write it, which makes it common for models that started life as game or film assets.

The converter writes a plain OBJ that imports cleanly into Blender, Maya, and most game engines, which makes it a practical handoff format for further editing.

FBX records its own unit setting, and the converter reads it so the result comes out in millimeters whatever the file was authored in. If your model still lands at the wrong scale, the source FBX declared the wrong units, and the scale tool will fix it in one step.