Convert STL to PLY Online — Free
Upload a Stereolithography file and download it as Polygon File Format. Runs entirely in your browser — no server uploads.
About These Formats
Stereolithography
STL stores only triangulated geometry — no colors, textures, or animations. It is the de-facto standard for 3D printing slicers and CAD software.
Used with
3D printing slicers (Cura, PrusaSlicer, Bambu Studio), CAD tools, rapid prototyping workflows.
Polygon File Format
PLY is a flexible format for storing 3D polygon meshes. It supports vertex colors, custom properties, and is commonly used for 3D scan data and point clouds.
Used with
3D scanning, photogrammetry, research, point cloud processing (MeshLab, CloudCompare).
When to Convert STL to PLY
Convert STL to PLY when you need to work with point cloud data or use tools like MeshLab, CloudCompare, or Open3D. PLY is flexible and supports custom vertex attributes including per-vertex colors from scanned data.
Other STL Conversions
Frequently Asked Questions
How do I convert STL to PLY?
Upload your .stl file using the tool above, confirm the source format is set to STL and the target is PLY, then click Convert. The file processes in your browser and you can download it immediately.
Does converting STL to PLY preserve textures?
PLY stores geometry only. Textures and materials will not be included in the output.
Is this converter free?
Yes, completely free. No account, no usage limits, no hidden fees.
Are my files uploaded to a server?
No. All processing happens locally in your browser using WebGL. Your files never leave your device.