Convert STL to GLB
Free online STL-to-GLB 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 GLB instantly
100% in your browser — your file never leaves your device.
Converting STL (stereolithography) to glTF Binary (GLB)
STL is the universal 3D-printing format, but it's geometry-only and awkward to view on the web. GLB packs your mesh into a single compact binary that loads instantly in browsers, AR viewers and game engines. Converting STL to GLB makes a printable model easy to show online.
What's kept and what's dropped
Your mesh geometry converts exactly, wrapped in a standard material so it renders correctly. STL carries no color or texture, so the GLB uses a neutral material you can restyle later.
How to convert STL to GLB
- 1Drop your STL file onto the box above, or click to browse for it.
- 2Sculptor converts it to GLB right in your browser — nothing is uploaded.
- 3Your GLB file downloads automatically. That's it.
STL to GLB — FAQ
- Is the STL to GLB converter free?
- Yes — free, with no sign-up and no upload limits.
- Does my STL get uploaded?
- No. It's converted entirely in your browser and never leaves your device.
- Why convert STL to GLB?
- To view or embed a 3D-printing model on the web, in AR, or in a game engine — GLB is the standard there, STL isn't.
- Will the STL have color in the GLB?
- STL stores no color, so the GLB gets a neutral material. Add color or materials afterward in a 3D app if you need them.
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