STL ↔ 3MF Converter

Drop files here

or

A 3D model: STL, OBJ, 3MF, GLB/glTF or PLY.

Convert STL to 3MF and 3MF to STL.

How to use
  1. 1Open an STL or 3MF file.
  2. 2The other format is chosen for you.
  3. 3Download.
FAQ
Why 3MF?
3MF is newer: it stores units and several parts in one file and is smaller than STL.
Is my model uploaded?
No. The model is opened and processed in your browser. It never leaves your device.