plainfolder → 3D printing → 3MF → STL

3MF to STL — take the models out of a 3MF project

Convert 3MF to STL: every object in a 3MF from Bambu Studio, PrusaSlicer, Cura or 3D Builder as one STL or a zip of separate STL files, placed as in the project. In your browser, nothing uploaded.

No server processing No account No daily limits

Saves model files for your slicer, never printer code. Opened and sliced in PrusaSlicer, OrcaSlicer, Bambu Studio and Cura.

About this conversion

Every object in the 3MF opens in the place the project put it, with the file’s units turned into millimetres; objects split over several files inside the package, as Bambu Studio and PrusaSlicer save them, are put together too. Save everything as one STL, or tick “each part as its own file” for a zip with one STL per object. Before saving, the edges are checked the way a slicer reads an STL — where two parts touch along an edge, they are moved apart by a ten-thousandth of a millimetre so the STL stays error-free.

Just want to look inside it?

The same tool without converting anything: open the file and read it.

The same model, other ways

The model stays open after it is read, so the format is picked at the end: the same model can leave here as OBJ (.obj) or STEP (.step). Before that you can repair it, cut it, make it smaller or combine it with another one.

Questions

Are the slicer settings kept?
No — STL holds only the shape. Settings, colours and plates stay in the 3MF.

Related

OBJ→STLSTEP→STLGLB→STLPLY→STL