Convert STL to GLB.
Free. In your browser.
STL (Stereolithography) to GLB — convert instantly.
Processed locally in your browser.
What is STL?
STL (Stereolithography) is the standard format for 3D printing. It stores raw triangle mesh data — vertices and face normals — without any material, color, or texture information. STL files come in ASCII or binary format.
Who uses STL?
The primary format for 3D printing (used by every slicer software), CAD export from SolidWorks, Fusion 360, AutoCAD, FreeCAD, and medical/scientific 3D visualization.
Why convert STL to GLB?
STL files have no materials, no UV mapping, and no compression. Converting to GLB lets you add materials in Trice Studio, view the model in a web browser, and share it with a much smaller file size thanks to meshopt compression.
How it works
Drop your .stl file
Drag and drop or click to select your STL model.
Auto-convert & optimize
Trice converts STL to GLB and applies meshopt compression — all in your browser.
Download GLB
Preview the result in Studio and export a production-ready GLB file.
Frequently asked questions
The converter creates a default gray PBR material for the mesh. You can then change materials, colors, and add textures in Trice Studio after conversion.
Usually yes. Binary STL is already compact, but GLB with meshopt compression typically achieves 20-40% smaller file sizes while preserving all geometry detail.
Yes. Both ASCII and binary STL formats are supported. Binary STL files load faster due to their smaller size.
Yes. Any STL file from any source — Cura, PrusaSlicer, SolidWorks, Fusion 360, Thingiverse — can be converted to GLB.
Other formats
More than a converter
Trice is a full 3D studio — optimize, share, and embed interactive 3D scenes on the web.
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