Input
Stereolithography
The 3D printing format: triangles only, no colour, UV or hierarchy. Every slicer understands it.
STL to OBJ converter
Convert STL to OBJ for free, directly in your browser. Files are never uploaded — everything runs on your own machine. No sign-up, no software to install.
Output
Wavefront OBJ
Plain-text geometry with UV coordinates. Materials are stored separately, in an .mtl file.
- STL carries no colour, so the result will be a single flat shade.
- Animation and skeleton are dropped: OBJ holds static geometry only.
- Materials go into a separate .mtl file — download it alongside the .obj.
- Textures are pulled straight out of the source file, with no re-encoding.
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