BREP → PLY

Convert BREP to PLY

Turn a BREP CAD model into a PLY mesh. Curved surfaces are meshed finely enough to stay smooth, and the part keeps its real size and orientation.

  • Fine, accurate meshing of curved surfaces
  • Real size and right way up
  • Runs on your computer: nothing is uploaded
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Drop a BREP file or
Files stay on your computer.
Done

How to convert BREP to PLY

  1. Add your BREP file

    Drop it on the converter above or click browse. It opens in your browser, so nothing is uploaded.

  2. Check the format is PLY

    PLY is already selected. You can switch to any other output from the menu.

  3. Convert and download

    Click Convert and your PLY file is ready in seconds. Download it straight away.

What is BREP?

BREP is the native exact-geometry format of the OpenCascade kernel, used by FreeCAD, CadQuery and many engineering tools built on it.

Full name
OpenCascade boundary representation
Type
Exact CAD geometry
Used in
FreeCAD, CadQuery, Salome, OpenCascade-based tools
Strength
Lossless for OpenCascade-based software.
Limits
Rarely supported outside the OpenCascade family.
More about BREP

What is PLY?

PLY stores meshes and point clouds, often with per-vertex colour. It is the usual output of 3D scanners and photogrammetry software.

Full name
Polygon File Format (Stanford)
Type
Triangle mesh
Used in
MeshLab, CloudCompare, Blender, 3D scanner software
Strength
Handles scans and per-vertex colour.
Limits
Little support in CAD tools.
More about PLY

Good to know

BREP stores exact surfaces; PLY needs triangles. We mesh each surface with a deviation of 0.05% of the part's size, which keeps holes and fillets smooth for printing and rendering.

Dimensions stay in the units of the original file, usually millimetres.

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Questions

Will curves look faceted?

No. Curved faces are meshed with a tight tolerance, so holes and fillets stay smooth.

Does it keep the size of my part?

Yes. The mesh has the same dimensions as the CAD model.

Are my files uploaded?

No. Everything runs in your browser.