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Free converter

STL to GLB

Anyfile converts an STL model to a GLB model for free, right in your browser: the file is never uploaded.

Files are converted in your browser and never uploaded. By using Anyfile you agree to the Terms of Use.

What changes from STL to GLB

What’s keptShape, colours, textures and animations

When to use GLB: Web 3D, AR previews, product viewers and game assets.

The two formats

.stl

STL modelStereolithography

A mesh format created by 3D Systems in 1987 for stereolithography printers. It describes a surface only as triangles, with no colour, units or materials, in text or binary form.

Sending models to 3D printers and slicers.

Opens in Cura, PrusaSlicer, Bambu Studio, Blender, Quick Look on Mac

About STL files

.glb

GLB modelglTF Binary

The single-file binary form of glTF from the Khronos Group. Meshes, materials, textures and animation are packed together, so one file loads ready to display.

Web 3D, AR previews, product viewers and game assets.

Opens in Blender, three.js, Babylon.js, Windows 3D Viewer

About GLB files

Questions

How do I convert STL to GLB?

Drop your STL file on this page, or choose it. Anyfile converts it on your device in a moment and the GLB downloads straight away. To change it first, open it in the 3D viewer.

Is my STL file uploaded anywhere?

No. The file is read and converted by your own browser, and nothing is sent to a server. You can check: open your browser’s developer tools, go to Network, and convert a file. No upload appears.

Can I convert several STL files at once?

Yes. Drop them together and you get one ZIP with every GLB inside.