Convert STL to OBJ
Free online STL-to-OBJ converter. No sign-up, no upload, no watermark — it runs entirely in your browser.
Drop your STL file here
or click to browse · we convert it to OBJ instantly
100% in your browser — your file never leaves your device.
Converting STL (stereolithography) to Wavefront OBJ
STL is geometry-only and everywhere in 3D printing, but many 3D apps and pipelines prefer OBJ — just as portable and ready to receive materials and UVs. Converting STL to OBJ makes a printable mesh easy to import and texture.
What's kept and what's dropped
Geometry is preserved exactly. The output OBJ has no materials yet (STL carried none) — you can assign materials and UVs in your 3D app afterwards.
How to convert STL to OBJ
- 1Drop your STL file onto the box above, or click to browse for it.
- 2Sculptor converts it to OBJ right in your browser — nothing is uploaded.
- 3Your OBJ file downloads automatically. That's it.
STL to OBJ — FAQ
- Is the STL to OBJ converter free?
- Yes — free, no account, no watermark, no limits.
- Does my STL leave my device?
- No. The conversion is 100% in-browser, so your file stays completely private.
- Why convert STL to OBJ?
- To open or edit a printable model in apps that prefer OBJ, or as a first step before adding color, materials and UVs.
- What's the difference between STL and OBJ?
- Both store mesh geometry, but OBJ also supports UVs and external materials (.mtl), while STL is shape-only and printing-focused.
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