Convert STL to GLB

STL → GLB: what you should know

STL is the standard format of 3D printing: a triangle mesh with no explicit units, no color and no materials. It's used mostly in slicers (Cura, PrusaSlicer, Bambu Studio), FDM and resin 3D printing, CAD, and it stores geometry only (triangles and normals). GLB, on the other hand, is the binary flavor of glTF, the modern standard for 3D on the web: a single file with everything inside — the format expected by the web (Three.js, model-viewer), AR, games, online stores, Sketchfab.

This tool converts your STL files to GLB right in the browser: no queue, no artificial size limit and, above all, your file is never uploaded to any server. Geometry is preserved with the exact coordinates and scale of the original — important if the model is going to be printed or measured.

Converting STL to GLB loses nothing that matters: what goes in is what comes out, in the format you need.