Convert STL to glTF
Free online STL-to-glTF 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 glTF instantly
100% in your browser — your file never leaves your device.
Converting STL (stereolithography) to glTF
STL is the geometry-only workhorse of 3D printing; glTF is the modern, web-friendly 3D format in readable JSON. Converting STL to glTF turns a print mesh into a text-based model you can view on the web and edit by hand.
What's kept and what's dropped
Your mesh geometry converts exactly, with a standard material added so it renders. STL has no color or texture, so those aren't present — add them in the glTF afterward if needed.
How to convert STL to glTF
- 1Drop your STL file onto the box above, or click to browse for it.
- 2Sculptor converts it to glTF right in your browser — nothing is uploaded.
- 3Your glTF file downloads automatically. That's it.
STL to glTF — FAQ
- Is the STL to glTF converter free?
- Yes — free, private and unlimited.
- Is my STL uploaded?
- No. It's converted in your browser and never sent anywhere.
- Why convert STL to glTF?
- To display a printable model on the web or in AR, or to work with it as readable, editable text instead of binary STL.
- Does STL color carry over?
- STL stores no color, so the glTF uses a neutral material you can restyle.
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