What is preserved
Surface triangles and normals are represented in the binary PLY output.
Free · No signup · Browser-local
STL to PLY Converter
Create a compact binary PLY surface mesh from an STL file.
Convert locally
Select your STL file
Choose a local 3D file to start the preview.
What can be lost or unsupported
- STL units remain ambiguous
- No materials or textures exist to recover
- Scene hierarchy is not 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: .ply
Common uses
- Use STL geometry in a PLY pipeline
- Prepare data for a PLY-oriented editor
- Create a binary mesh interchange 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.