Updated June 2026 · runs 100% in your browser
STL to PLY
Convert STL models to PLY on your device. No upload, no sign-up, no limits.
Drop STL 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 STL files and download PLY 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 STL to PLY
PLY is common in 3D scanning and research tools. This rewrites your STL geometry as a binary PLY mesh.
Frequently asked questions
How do I use STL to PLY?
Drop STL files and download PLY models.
Is my file uploaded?
No. It is converted on your device with a local copy of three.js; nothing is uploaded.
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.
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.