STL → GLB

Convert STL to GLB

Convert STL files to GLB in seconds. Geometry, UVs and materials are carried over where GLB supports them, and the model lands the right way up.

  • Geometry, UVs and materials kept where supported
  • Correct orientation and scale
  • Runs on your computer: nothing is uploaded
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Drop an STL file or
Files stay on your computer.
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How to convert STL to GLB

  1. Add your STL file

    Drop it on the converter above or click browse. It opens in your browser, so nothing is uploaded.

  2. Check the format is GLB

    GLB is already selected. You can switch to any other output from the menu.

  3. Convert and download

    Click Convert and your GLB file is ready in seconds. Download it straight away.

What is STL?

STL describes a surface as a list of triangles, with no colour, material or unit information. It is the default file for 3D printing and is exported by almost every CAD and modelling program.

Full name
Stereolithography
Type
Triangle mesh
Used in
Cura, PrusaSlicer, Bambu Studio, Blender, Fusion 360, SolidWorks
Strength
Universal support in 3D printing software.
Limits
Only triangles: no colours, no materials, no units, no editable CAD features.
More about STL

What is GLB?

GLB is the single-file binary version of glTF, the open standard for 3D on the web. It packs geometry, materials and textures into one compact file that browsers, Android AR and most viewers load directly.

Full name
glTF 2.0 binary
Type
3D scene (meshes, materials)
Used in
three.js, Babylon.js, Google model-viewer, Android AR, Shopify, Blender
Strength
Compact, fast to load, ideal for websites and AR.
Limits
Not used for CAD or 3D printing.
More about GLB

Related conversions

Questions

Are materials and textures kept?

Colours and texture coordinates are carried over when GLB supports them. Texture images are kept for formats that can hold them.

Will my model be upside down?

No. STL and GLB may use different "up" directions, and we rotate the model so it stands the same way in your software.

Are my files uploaded?

No. The conversion runs inside your browser.