Open CASCADE, the 3D modelling kernel
3D modeling & numerical simulation



Open CASCADE Technology (OCCT) documentation is available in two forms:
  1. Open CASCADE Technology Overview provides a general description of OCCT modules and other features. It includes Installation instructions, User and Developer guides.

    Browse Open CASCADE Technology Overview online: latest certified release, current development version.

    User's Guides describing modules and development tools are also available in Adobe Portable Document Format (PDF). To read this format, you need Adobe Acrobat Reader, which is a freeware and can be downloaded from Adobe website.
  2. Reference Documentation provides a detailed description of all OCCT classes organized in hierarchical form corresponding to OCCT structure (module -> toolkit -> package -> class).

    Browse Open CASCADE Technology Reference Documentation online: current development version.

Open CASCADE Technology documentation is generated by an open source Doxygen tool and is included in both, Windows installer and source packages.

Latest news
  • Open CASCADE CAD Assistant for iOS platform is available!
  • Open CASCADE Technology 6.9.0 is available for download!
  • JT Assistant for Android

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