What is preserved
Surface geometry is preserved and a default display material is assigned.
Free · No signup · Browser-local
STL to GLB Converter
Package an STL surface mesh in a web-friendly GLB container for preview and distribution.
Convert locally
Select your STL file
Choose a local 3D file to start the preview.
What can be lost or unsupported
- Original units remain ambiguous
- No source textures or materials exist to recover
- No semantic CAD metadata is created
How to use this tool
- Choose a local .stl file under 100 MB.
- Wait for the preview and statistics.
- Convert and download the result: .glb
Common uses
- Preview an STL in a glTF workflow
- Create a web-friendly mesh asset
- Share geometry in one binary file
Frequently asked questions
Are my files uploaded?
No. Model parsing, preview, and export run in your browser.
Is the conversion lossless?
No format conversion is described as lossless. Review the format-specific warnings above before using the output.
What is the file-size limit?
100 MB is a safety ceiling, not a guarantee. Mobile devices may need substantially smaller files.