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← 3D Model Converter

Convert STL to GLB online

Drop a .stl file to turn it into GLB. You see the model in 3D before converting, and the file never leaves your device.

What is kept when converting STL to GLB

Geometry
Kept
Materials
Not in STL
Textures
Not in STL
Animation
Not in STL
Scene hierarchy
Not in STL

About STL

Stereolithography

STL describes only the surface of a model as triangles — no colors, materials or textures. It is the default format for 3D printing and slicers.

About GLB

Binary glTF 2.0

GLB is the binary version of glTF 2.0: geometry, PBR materials, textures and animations packed into one file. It is the standard for web 3D, AR and most game engines.

How it works

  1. 01

    Drop the .stl file (with its textures or .bin/.mtl files, if any).

  2. 02

    Check the model in the 3D preview; GLB is already selected.

  3. 03

    Click “Convert” and the .glb file downloads.

Questions

Is the STL to GLB converter free?+

Yes, without limits, sign-up or watermark.

Is my STL file uploaded?+

No. The STL file is read and converted in your browser; nothing is sent to a server.

Why are textures missing after converting STL?+

Textures stored as separate files must be selected together with the model. GLB keeps them only if the format supports textures.

Convert STL to other formats

STL → glTFSTL → OBJSTL → PLYSTL → USDZ

Convert other formats to GLB

glTF → GLBFBX → GLBOBJ → GLBPLY → GLBDAE → GLB3MF → GLBUSDZ → GLB3DS → GLBVOX → GLBVRML → GLB3DM → GLBAMF → GLBLWO → GLBKMZ → GLBMD2 → GLBVTK → GLBSVG → GLB

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Need game-ready trees, plants and rocks?

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