Home Conversions BREP to FBX
BREP → FBX Convert BREP to FBX Turn a BREP CAD model into an FBX 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 FBX 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 FBX FBX is already selected. You can switch to any other output from the menu.
Convert and download Click Convert and your FBX 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 FBX? FBX is Autodesk's scene format for games and animation. It carries meshes, materials, hierarchies and animation, and it is the usual way to bring models into Unity and Unreal Engine.
Full name Filmbox (Autodesk) Type 3D scene (meshes, materials) Used in Unity, Unreal Engine, Maya, 3ds Max, Blender, MotionBuilder Strength The default import format for game engines. Limits Closed specification; versions differ between programs. More about FBX
Good to know BREP stores exact surfaces; FBX 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.