How to convert STL to PLY
- Add your .STL file - drop it in the box above or click to browse.
- Convert it to .PLY in a few seconds.
- Download your new .PLY file.
What to expect
- STL stores no color data; the output
.plywill have blank color slots - assign vertex colors in MeshLab or CloudCompare after converting. - PLY comes in ASCII and binary variants; most tools let you choose at export time - binary is smaller, ASCII is human-readable.
- Units are not stored in either format, so the numbers carry the same meaning they had in the source application.
Frequently asked questions
Does converting STL to PLY change the mesh geometry?
No - both formats use triangle lists, so vertex positions and face structure transfer exactly with no approximation.
Can I add color to the PLY file after converting from STL?
Yes - open the
.ply in MeshLab or CloudCompare and assign per-vertex color from a scan, texture bake, or manual selection; the conversion gives you the geometry and color is a separate step.Is PLY better than STL for 3D printing?
No - slicers such as Cura and PrusaSlicer use STL or 3MF, not PLY; keep the original
.stl for printing workflows.Can I convert PLY back to STL?
Yes - open the
.ply in MeshLab or Blender and export as .stl; color data will be dropped since STL has no color support.Programs that convert STL: PolyTrans|CAD+DCC · 3D Builder · 3Data Expert · Autoconverter · meshconv · Metasequoia · TransMagic · Afanche 3D Viewer for Mac
