Updated June 2026 · runs 100% in your browser
PLY to STL
Convert PLY meshes to STL on your device. No upload, no sign-up, no limits.
Drop PLY files here
or click to choose
🔒 Processed on your device · 0 bytes uploaded
Loads the 3D engine (~1 MB) on first use — cached after that.
How it works
Drop PLY files and download STL models.
It all runs in your browser with a local copy of three.js — your model never leaves your device, and it stays free, unlimited and private.
About PLY to STL
PLY often comes out of 3D scanners; STL is what printers and slicers use. This converts the mesh across.
Frequently asked questions
How do I use PLY to STL?
Drop PLY files and download STL models.
Is my file uploaded?
No. It is converted on your device with a local copy of three.js; nothing is uploaded.
What is a PLY file?
PLY (Polygon File Format) stores 3D geometry along with per-vertex color and other properties. It's often used for 3D-scanned models and point clouds.
What is an STL file?
STL is the standard 3D-printing format. It describes a model's surface as a mesh of triangles but stores no color or texture, which is why it's used mainly for printing rather than rendering.