Convert glTF files to 3DM in seconds. Geometry, UVs and materials are carried over where 3DM supports them, and the model lands the right way up.
Drop it on the converter above or click browse. It opens in your browser, so nothing is uploaded.
3DM is already selected. You can switch to any other output from the menu.
Click Convert and your 3DM file is ready in seconds. Download it straight away.
glTF is the open Khronos standard for delivering 3D content on the web. The .gltf version is human-readable JSON that points to a separate .bin file for geometry and to image files for textures.
3DM is the native file of Rhino, used widely in industrial, jewellery and architectural design. It stores NURBS surfaces, SubD objects, meshes and block instances.
If your glTF has companion files (.bin and texture images), select them together with the glTF file so materials come through.
Colours and texture coordinates are carried over when 3DM supports them. Texture images are kept for formats that can hold them.
No. glTF and 3DM may use different "up" directions, and we rotate the model so it stands the same way in your software.
No. The conversion runs inside your browser.