Open Cascade Technology

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Open Cascade Technology

OpenCASCADE Screenshot
Developer(s)	Open Cascade S.A.S.U.
Initial release	1999; 25 years ago (1999)
Stable release	7.8.1[1]  / 1 April 2024; 7 months ago (1 April 2024)
Repository	git.dev.opencascade.org/gitweb/?p=occt.git
Written in	C++
Operating system	Linux, FreeBSD, Mac OS X, Windows, Android, iOS and WebAssembly
Type	CAD, CAM, CAE
License	LGPL-2.1-only[2] with exception[3]
Website	https://dev.opencascade.org

Open Cascade Technology (OCCT), formerly called CAS.CADE, is an open-source software development platform for 3D CAD, CAM, CAE, etc. that is developed and supported by Open Cascade SAS company.

OCCT is a full-scale B-Rep (Boundary representation) modeling toolkit. OCCT is available under the LGPL-2.1-only license, which permits its usage in open source and proprietary applications.