What this tool does
Use this GLB to STL converter to extract mesh geometry from a GLB file and download an STL without uploading the file.
When this tool fits
Best when you need printable geometry from a GLB
the converter extracts mesh triangles into STL for slicers and mesh workflows.
Best for self-contained GLB files
binary GLB keeps mesh data in one file and avoids missing external buffers.
Best when textures are not required
STL output preserves geometry only, so materials and animation are intentionally dropped.
How to use it
- 1
Upload a GLB file
Choose a self-contained .glb file from your device.
- 2
Inspect the mesh
Check the preview, mesh count, triangle count, and dimensions before export.
- 3
Set STL output options
Adjust scale, max dimension, centering, floor placement, and merge mode if needed.
- 4
Download STL
Export a slicer-compatible STL generated from the GLB geometry.
Specs and limits
- Input
- Self-contained GLB
- Output
- Binary STL
- Processing
- Local browser mesh extraction
- Preserves
- Triangle geometry and model scale
- Does not preserve
- Materials, textures, animation, cameras, or lights
- STL stores triangle geometry only.
- Textures, materials, animation, rigging, cameras, and lights are not preserved.
- Multi-file GLTF uploads are not supported in the first version.
FAQ
Are GLB files uploaded?
No. The GLB is read and converted in your browser.
Will STL keep GLB textures?
No. STL does not store textures or PBR materials.
What happens to multiple meshes in a GLB?
The default output is one merged STL. If you need separate parts, use the separate ZIP option when available for the loaded scene.