STL to PLY converter

Drop a STL file, check the preview, download PLY. The conversion runs in your browser, so your model never leaves your device.

Convert the attached STL file to PLY

Files are processed entirely in your browser. Nothing is uploaded to a server.

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How the conversion works

STL is the standard mesh format in 3D printing: a plain list of triangles with no units, no color, and no materials. Nearly every slicer and CAD tool reads it.

The converter writes binary PLY, a compact format that mesh-processing tools like MeshLab and CloudCompare handle well.

Frequently asked questions

Does my file get uploaded?

No. Parsing and export run in your browser with WebAssembly and three.js. The file stays on your device, and it works offline once the page has loaded.

What survives the STL to PLY conversion?

Geometry comes through completely: every triangle, at full precision. Materials, textures, and vertex colors are dropped, because PLY as written here stores plain triangles only.

Is there a file size limit?

Files up to 150 MB work. Heavier meshes convert too, they just take longer; if a file is unwieldy, reduce its triangle count first with the reduce tool.

More STL conversions

STL → OBJ STL → GLB All converters

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