Choose your STL file
Select STL from your device. The file is processed locally.
ON YOUR DEVICE
STL to GLB
Convert STL models to GLB on your device. Preview the mesh, then check the exported model.
Choose a 3D model
GLB, glTF, OBJ, STL or PLY · Device-dependent capacity
Three simple steps
Prepare GLB output
GLB packages supported scene data into one binary glTF file. Unsupported extensions may not import.
Save and check your GLB file
Check scale and orientation in the destination application. STL and OBJ files do not reliably declare units.
Common questions
What changes when I convert STL to GLB?
STL contains triangle geometry only. Materials, textures, scene hierarchy and animation are not retained. GLB packages supported scene data into one binary glTF file. Unsupported extensions may not import. Check scale and orientation in the destination application. STL and OBJ files do not reliably declare units.
Will the GLB file be smaller?
Not necessarily. GLB packages supported scene data into one binary glTF file. Unsupported extensions may not import. Size depends on the source and settings. Compare the exported file and inspect its geometry.
Which STL files work here?
STL contains triangle geometry only. Materials, textures, scene hierarchy and animation are not retained. Only mesh models are supported, not CAD solids or every compressed glTF extension.
Is there a size cap for STL to GLB?
There is no fixed file-size quota. Process one main file at a time. Your device memory and browser determine practical capacity. Large selections show a warning that you can continue past.