Convert STL to PLY Online
Convert STL 3D models to binary PLY (Stanford Triangle Format) directly in your browser — a free STL to PLY converter with no upload and no install. Preview the geometry, then download a PLY ready for MeshLab, CloudCompare, or Blender.
This .stl to ply converter keeps every vertex and normal intact — a lossless, direct translation.
Drop your STL file here
Supported format: .STL
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Frequently Asked Questions
What is a PLY file?
PLY (the Stanford Triangle Format) is a widely supported 3D geometry format that stores per-vertex positions and normals — commonly used by 3D scanning, point-cloud, and mesh-processing tools like MeshLab and CloudCompare.
Is this a binary or ASCII PLY file?
Binary (little-endian) — the more compact form and the default most tools (Blender, MeshLab, CloudCompare) expect for both import and export.
Will I lose any data converting STL to PLY?
No geometry is lost. STL contains only triangle geometry, and PLY stores the same triangle geometry (positions and normals) — the conversion is a direct, lossless translation.
Is my STL file uploaded to a server?
No. The conversion happens entirely in your browser. Your file is never sent to our servers.
Does PLY include color information?
This converter outputs geometry only (positions and normals), matching what STL itself contains. STL has no per-vertex color data to carry over.
Can I open the PLY file in MeshLab, CloudCompare, or Blender?
Yes. PLY is one of the most common formats in 3D scanning and mesh-processing workflows and opens in virtually all of that software, plus most general-purpose 3D tools.