Free BREP (.brep, .brp) to PLY (.ply) converter — running entirely in your browser. No upload, no signup, no file limits: your files never leave your device.
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BREP is the native geometry format of the open-source CAD kernel that this site and many engineering tools are built on. It stores exact topology and geometry — faces, edges, vertices and the surfaces that carry them — with full fidelity for applications built on that kernel.
PLY was designed at Stanford for storing 3D-scanned data. Beyond plain geometry it can attach arbitrary per-vertex properties — most importantly vertex colors — which makes it the format of choice for 3D scans, photogrammetry output and point-cloud-derived meshes.
| BREP | PLY | |
|---|---|---|
| Geometry | Exact B-rep topology | Triangle mesh / scan data |
| Units | Model units | No |
| Colors & materials | No | Per-vertex colors |
| Animations | No | No |
| Typical use | Open-source CAD kernel workflows | 3D scans & photogrammetry |
Yes — free with no accounts, no watermarks and no file-size limits. Conversion runs on your own machine, so there are no server costs behind it.
No. The converter runs entirely in your browser using WebAssembly. Your .brep file never leaves your device, which makes it safe for confidential designs.
BREP stores exact CAD surfaces, which are tessellated into triangles at a quality you choose — from fast drafts to near-exact precision meshes. Preview the result in the built-in 3D viewer before downloading.
Yes. Every converted model opens in the built-in 3D viewer with an assembly tree, display modes and section views, so you can inspect the result first.
BREP stores exact boundary surfaces, but every output available here is a triangle mesh. Tessellation is irreversible: feature history, constraints and analytic curves cannot be recovered from the converted file. The PLY result has no declared units and does not carry textures, animation or an assembly tree.
What do tessellation quality settings actually control? Linear and angular deflection explained with practical presets for 3D printing, rendering and web delivery.
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