Convert 3MF to STL
Drop your 3MF files and download them as STL — free, in batch, and they never leave your device.
3MF → STL: what you should know
3MF is 3D printing's modern format — Bambu Studio, PrusaSlicer and Cura use it natively because it stores units, colors and even print profiles — but the world still speaks STL: online print services, model marketplaces and legacy software keep requiring it. This conversion extracts the 3MF's geometry and delivers it as universal STL.
Every object in the 3MF package is read with its transforms applied and written as a single binary STL, with the same coordinates — no rescaling. As always on ilove3d, the file is processed in your browser and never uploaded.
What's left behind: the metadata that makes 3MF special (multi-material colors, slicer settings, explicit units) doesn't exist in STL. If your final destination is your own modern slicer, keep the 3MF; convert to STL when the recipient demands it.
Frequently asked questions
Can I convert a Bambu Studio / PrusaSlicer project?
Yes: those .3mf files are standard packages and the objects' geometry extracts normally. The print settings they store inside (profiles, supports, plate layout) are slicer-specific and don't travel into the STL.
The 3MF had several objects — what do I get?
One STL with all the geometry combined, each object in its original position. If you need the objects as separate files, export them individually from the slicer before converting.
Are the multicolor 3MF's colors lost?
Yes — STL can't represent color or material assignment. To keep multicolor information, keep the original 3MF for your slicer and use the STL only where it's required.
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