GLB to STL Converter
Extract mesh geometry from GLB / glTF and export as printable STL. Ideal for 3D printing models exported from Blender, Sketchfab, or Ready Player Me.
3D printing slicers like Cura, PrusaSlicer, and Bambu Studio expect STL, but most models you download from Sketchfab or export from Blender come as GLB. This tool loads the GLB with three.js directly in your browser, merges all meshes into one printable surface, and writes a binary STL - geometry only, since STL has no concept of color or texture. It's the inverse of STL to GLB, and a natural next step after using the 3D Web & AR Optimizer to simplify a dense scan before printing.
Loading tool
How it works
- 01
Drop or select your GLB or self-contained glTF model.
- 02
Click Convert to merge the scene geometry into a single mesh.
- 03
Download the STL and load it into your slicer.
Details
- Category
- 3D models
- Runs
- In your browser
- Files uploaded
- No
- Cost per run
- Free
- Sign-in
- Not required
- Works offline
- Yes, once loaded
Last updated 2026-08-03
Common questions
Does it keep colors?
STL stores geometry only - colors and textures are discarded, which is standard for 3D printing.
Animated GLBs?
The static mesh is exported. Animations are dropped.
Will the mesh be watertight for printing?
Conversion preserves the geometry as-is. If the source mesh has holes or non-manifold edges, repair it in Blender or your slicer's mesh-fixing tool before printing.
ASCII or binary STL?
The output is binary STL, which is smaller and loads faster in slicers than ASCII STL.