OpenCascade Engine

The same geometry kernel used in professional CAD software, compiled to WebAssembly and running in your browser.

Industry-Grade Geometry

OpenCascade is an open-source B-rep (boundary representation) geometry kernel used in professional CAD tools like FreeCAD. daz-cad compiles it to WebAssembly via OpenCascade.js, giving you access to the full power of B-rep modeling directly in the browser — no installation required.

B-Rep Modeling

Unlike mesh-based tools that approximate surfaces with triangles, B-rep modeling works with exact mathematical surfaces. This means:

• Precise fillets and chamfers on any edge
• Exact boolean operations (union, cut, intersect)
• Clean geometry suitable for 3D printing
• Edge and face selection for targeted operations

Zero Installation

Everything runs in the browser. OpenCascade.js is loaded from CDN, the geometry kernel initializes in seconds, and your models are computed entirely client-side. No server required for the core CAD operations.