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Free converter

STL to GLTF

Anyfile converts an STL model to a glTF 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 GLTF

What’s keptShape, colours, textures and animations

When to use GLTF: Exchanging real-time 3D scenes with materials and animation between tools and engines.

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

.gltf

glTF modelGL Transmission Format

An open 3D format from the Khronos Group, first released in 2015. A JSON file describes the scene and points to separate binary buffers and texture images.

Exchanging real-time 3D scenes with materials and animation between tools and engines.

Opens in Blender, three.js, Godot, Unity and Unreal (with plug-ins)

About GLTF files

Questions

How do I convert STL to GLTF?

Drop your STL file on this page, or choose it. Anyfile converts it on your device in a moment and the GLTF 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 GLTF inside.