3MF to STL 3MF to STL

Extract printable mesh geometry from a 3MF package into a broadly compatible STL. STL keeps triangular geometry, not 3MF materials, colors, textures or printer settings. This converter writes coordinates in millimeters, but STL itself has no unit metadata: choose millimeters in the slicer. Keep the 3MF original and check dimensions, connected parts and mesh integrity.
Choose File 3MF → STL Drag & drop files here … (or click to select files) or drop an archive with files Upload file

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Free uses and credits

One successful conversion is free per account, once across all file converters. After that, each source file is charged at the displayed rate.

Cost in credits: 8.

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Credits or a free use are spent only after the results are saved. Getting the same ready files again is free.
Quick start

Extract printable mesh geometry from a 3MF package into a broadly compatible STL.

  1. Upload the complete 3MF package
  2. Convert mesh parts to STL
  3. Check scale and parts in your slicer

3MF to STL

Upload a 3MF 3D model and save it as STL. Conversion runs on the server through Assimp and is useful for preparing models for preview, 3D printing, editor exchange or web publishing.



3MF is a 3D model file format. Inettools converters use it for uploading, previewing and converting 3D models between supported formats.

STL is a 3D model file format. Inettools converters use it for uploading, previewing and converting 3D models between supported formats.

Supported formats

This converter shows the accepted source formats and the result format.

Input files
3MF STL 3DS AC ASSBIN ASSXML BLEND BVH COB DAE DXF FBX GLB GLTF IFC IRR LWO LWS MD2 MD3 MD5MESH MS3D OBJ OFF PLY X X3D STEP STP IGES
Result
STL

A damaged file or a non-standard codec can still fail even when the extension is supported.

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3MF to GLB
3MF to GLB

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