Home Conversions BREP to glTF
BREP → glTF Convert BREP to glTF Turn a BREP CAD model into a glTF 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
How to convert BREP to glTF Add your BREP file Drop it on the converter above or click browse. It opens in your browser, so nothing is uploaded.
Check the format is glTF glTF is already selected. You can switch to any other output from the menu.
Convert and download Click Convert and your glTF 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 glTF? glTF is the open Khronos standard for delivering 3D content on the web. The .gltf version is human-readable JSON that points to a separate .bin file for geometry and to image files for textures.
Full name GL Transmission Format 2.0 Type 3D scene (meshes, materials) Used in three.js, Babylon.js, Unity (via plugin), Blender, Sketchfab Strength Open standard, easy to inspect and edit. Limits Comes as several files; use GLB when you need a single file. More about glTF
Good to know BREP stores exact surfaces; glTF 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.
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.