Convert STEP to STL Online

Upload a STEP or STP file to VIZON, check every part in the viewer, then export it as STL in millimetres for your slicer.

What you can do

Both extensions are the same format and both are accepted.

Inspect parts, measure and section the model in the viewer first.

STL exported from Studio or the CAD editor is in millimetres with Z up, ready for slicers.

Open the STEP in the CAD editor, add a hole or cut, then export STL.

The original stays in your library with its exact geometry.

Need it for the web instead? Export GLB from the same menu.

Want more detail? Read the guide: STL vs STEP.

Format names link to a plain explanation of each file type.

Does converting STEP to STL lose quality?

STL replaces exact curves with triangles, so curved surfaces become faceted. That is fine for printing; keep the STEP for engineering changes.

Can I convert STL back to STEP?

Not in a useful way. An STL has no exact surfaces, so a STEP made from it is still just triangles. Rebuild the part in CAD instead.

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