clayground3MF to STL converter
It runs in your browser. Nothing is uploaded.
3MF to STL
- Kept. shape.
- Dropped. colours.
- Size. Written in the unit you pick, millimetres for printing.
The two types
- 3MF. 3MF is a zip of XML made for 3D printing. It names its units and can hold several objects and colours, which STL can’t. Opened by Cura, PrusaSlicer, Bambu Studio, Orca Slicer, Fusion 360 and Windows 3D Builder.
- STL. STL describes a surface as triangles and nothing else: no colour, no units. Slicers read its numbers as millimetres. Opened by Cura, PrusaSlicer, Bambu Studio, Blender, MeshLab and Fusion 360.
Questions
How do I convert 3MF to STL?
Drop the 3MF file on this page, check the size under What’s inside, and press Download STL. It runs in your browser, so there is no upload and no wait.
What does 3MF to STL keep?
STL keeps the shape. It has no place for colours, so that is dropped.
What size will the STL be?
STL has no units, and slicers read its numbers as millimetres. The page writes millimetres, so a 40 mm part from 3MF arrives 40 mm long. If the size looks off, change Write as under What’s inside.
Will the STL print?
What’s inside says whether the surface is closed, which slicers need. If it is open, repair it in your slicer, Meshmixer or Blender first.
Is my file uploaded?
No. The file is opened and converted in your browser, and it stays on your device.
Is it free?
Yes. There is no account, no watermark and no limit on files.