The most mature open-source parametric 3D CAD, suited to mechanical, product and architectural design, with a rich set of workbenches and add-ons.
Open CASCADE (OCCT)
The geometry kernel behind many open-source CAD tools, including FreeCAD and CadQuery.
- Category
- 📐 CAD & Modeling
- Repository
- Open-Cascade-SAS/OCCT
- Stars
- ★ 3,044
- Forks
- 722
- Language
- C++
- License
- LGPL-2.1
- Last updated
- 2026-10-20
- Visits
- 0
Geometry kernel
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