Runs 100% in your browser. Best texture retention with GLB / GLTF / USDZ. ZIP & ZAE supported.
For OBJ with MTL + textures, drop a ZIP including .obj, .mtl and texture files.
FYI: STL/PLY never embed textures. Use GLB/GLTF/USDZ or OBJ (ZIP) to keep materials & textures.