Converters · GLB → STL
GLB to STL Converter
Free, private, in your browser. Convert GLB to STL — no signup, no upload.
Unlike online converters that upload to a server, your file never leaves your browser.
Drop your 3D file here
or click to browse — .glb files up to 200 MB
When to convert GLB to STL
The most common path in 2026: an AI generator (Meshy, Tripo, Hunyuan) gives you a .glb, but your slicer — Bambu Studio, PrusaSlicer, Cura — wants .stl. Drop the GLB above and the STL will land in your slicer, geometry intact.
GLB vs STL: what’s the difference?
GLB is a single binary file that packs geometry, UV coordinates, PBR materials, textures and animation together — it is the format AI generators like Meshy, Tripo and Hunyuan hand you. STL is the 1987 standard: a bare list of triangles with no color, no units and no UV, understood by every slicer and CAD tool. Converting GLB to STL strips the model down to pure printable geometry — exactly what you need when a slicer only accepts STL.
What GLB → STL keeps and drops
Preserved
- ✓Every triangle of the mesh geometry
- ✓Real-world scale and proportions
- ✓Model orientation
Dropped
- ✗Color, PBR materials and textures — STL stores no appearance data
- ✗UV coordinates — STL has no texture channel
- ✗Animation and rigging — STL is a single static mesh
How to convert GLB to STL
- 1Drop your .glb file onto the box above, or click to browse.
- 2The file is parsed in your browser — nothing is uploaded.
- 3Check the 3D preview, then click “Convert to STL”.
- 4A binary STL downloads, ready for any slicer or CAD tool.
Color, texture and animation cannot survive in STL. If you want to print your AI model in full color on a Bambu AMS or Prusa MMU, use our GLB to 3MF converter instead. AI-generated meshes are also not always watertight, so run our free STL Repair before printing if your slicer rejects the file.
GLB to STL — FAQ
Does the STL keep my model’s colors?
No — STL physically cannot store color. For a multi-color machine, use our GLB to 3MF converter instead — it bakes the texture into per-vertex color that 3MF carries into your slicer.
Is my GLB uploaded anywhere?
No. The converter runs as WebAssembly in your tab; your file never leaves your device.
What’s the maximum file size?
No hard cap — processing is local. Above ~200 MB, parsing may take a while on low-RAM devices.