3MF to OBJ
Export 3MF geometry as an OBJ and MTL bundle for other modeling applications. Extract the ZIP and keep the two files together.
Your model goes here.
Choose your file or try the original sample below. No installation or sign-up.
01 / HOW IT WORKS
Open, inspect, then use your result.
- 01
Open your file
Choose, drop or paste your 3MF file. All three input methods use the same local checks.
- 02
Look from every angle
Orbit, zoom and switch between standard views. Read the dimensions and object count beside the model.
- 03
Download the converted file
After conversion, download OBJ + MTL (ZIP). Open the result in your destination software and check the units before use.
02 / TRY IT YOURSELF
A real file. A result you can check.
This original four-hole plate measures 80 × 50 × 8 mm. The sample uses the input format for this page. Use the default unit and axis settings to reproduce those dimensions.
Original public sample. Your uploads are never added to this gallery.

03 / FORMAT & USE
3MF to OBJ
Export 3MF geometry as an OBJ and MTL bundle for other modeling applications. Extract the ZIP and keep the two files together. File units are read from the model and normalized for the target format.
What this viewer supports
Supports core mesh objects, in-file components, object-level base materials and opaque Materials-extension vertex colors. Textures and other extensions are rejected. Printer profiles, supports and toolpaths are not converted.
Supports files up to 32 MiB, 1 million triangles and 2,000 mesh objects. For larger assemblies, export only the parts you need.
04 / QUESTIONS
Know your input. Understand your output.
Can I convert an entire slicer project?
Only supported model geometry is read. Printer settings, material profiles and toolpaths are outside this tool’s scope. A project using unsupported model extensions will show an error.
Do I need an account or credits?
No. These tools are free and run in your browser. No account, subscription or credits are required.
Is my model uploaded?
No. Your selected file is read and processed in this browser. The page downloads its CAD engine and public samples, but does not upload your model. Refreshing or leaving the page clears the current file from the tool.
How are units and orientation handled?
Dimensions use millimetres with Z up. GLB uses metres with Y up; exported STL is mm/Z-up and OBJ is mm/Y-up.
Can I paste a file from my computer?
Copy a file in your file manager, then paste here. Your browser must expose the clipboard as a file; a copied path or text will not open a model.