Skip to content

Explore & integrate

All components & SDKsSupported file formatsConversion guidesTechnical articlesEngineering use cases

Data exchange & wrappers

ACIS Import-ExportAssimp ImportC# WrapperDXF Import-ExportJT Import-ExportParasolid ImportSTEP XML Reader & WriterUSD Import & ExportWrappers

Modeling & meshing

BestFitBRepGraph AdvanceExpress MeshMesh FrameworkSurface from Scattered PointsSurface WrappingUnfolding

Automation & visualization

CAD SimplificationCAM LibraryCanonical RecognitionCollision DetectionLight Web ViewerPMI Visualization TechnologySamplesVolume Rendering

Commercial services

Custom development overviewSupport packages & pricingTraining & e-learningProduct maintenance

Work with our engineers

Technical assistanceArchitecture & consultingBug fixes & performanceCAD integrationSoftware developmentSoftware customization

OCCT & documentation

Open CASCADE TechnologyDocumentation overviewGetting started & guidesUser guidesC++ API referenceUpgrade guidesContribution guide

Community archives

Developer archive overviewForum archiveTickets archive

Explore applications

Applications overviewCascadeScopeEnd-user applicationsCADRaysCAD ProcessorCAD AssistantCAD Builder

About OCCT3D

Company overviewIndustriesCustomer storiesCustomers & partnersNewsCareersContact OCCT3D
SearchContact us

Legal information

Third-Party Notices

Copyright and licence notices for third-party materials provided with the website.

On this page

Website searchWebsite fontsWebsite softwareGitHub markDocumentation softwareCascadeScopeInteractive OCCT examplesDownloads and products
01

Website search

Whole-site search uses Pagefind, distributed under the MIT licence. Its JavaScript, WebAssembly and search index are hosted on occt3d.com. Searches run in your browser without contacting a third-party search provider.

The complete copyright and licence notices supplied with the installed Pagefind package are included with the search bundle.

Pagefind licence and copyright notice Additional notice supplied with Pagefind
02

Website fonts

The website includes Noto Sans font files, distributed under the SIL Open Font License 1.1. The files are hosted on occt3d.com and no external font service is contacted when a page is opened.

The font files are redistributed without modification. The copyright notice and complete licence text are available through the links below.

  • Noto Sans Regular, Bold and Black. Copyright 2015 Google Inc.
Font copyright notices SIL Open Font License 1.1
03

Website software

The website is generated using Astro and TypeScript together with open-source build dependencies. Those tools are used to produce the public files and do not change the licence terms applicable to Open CASCADE Technology, DevTools, samples, documentation or other downloadable products.

JavaScript delivered as part of a particular browser application remains subject to the notices supplied with that application.

Astro project TypeScript project
04

GitHub mark

The official GitHub Invertocat mark is used only on links to the OCCT project on GitHub. GitHub and the Invertocat mark are trademarks of GitHub, Inc. Their use does not imply GitHub endorsement of OCCT3D or its services.

GitHub logo and usage guidance
05

Documentation software

The OCCT documentation includes output produced with Doxygen and a static search index produced with Pagefind. Mathematical expressions in documentation are rendered with MathJax. Applicable copyright notices and licence texts are provided with the published documentation.

The generated OCCT documentation and the Open CASCADE Technology source material that it describes remain subject to their respective copyright and licence notices.

Documentation notices MathJax licence Pagefind licence
06

CascadeScope

CascadeScope includes third-party software. Copyright notices and licence terms supplied with the application apply to that software.

The application notice identifies the libraries and other third-party material included in the published browser package. Those notices apply in addition to the terms applicable to CascadeScope itself.

CascadeScope third-party notices
07

Interactive OCCT examples

Interactive technical examples include Open CASCADE Technology compiled to WebAssembly. OCCT is used in these examples under a commercial licence granted by OPEN CASCADE SAS. Applicable third-party notices are supplied with the browser package.

Interactive example notices Emscripten licence
08

Downloads and products

Open CASCADE Technology, DevTools, samples and other downloadable products may have their own licence terms and notices. The terms supplied with the relevant download govern that software and take precedence over this website notice where they differ.

OCCT3D

OCCT3D CAD SDKs, 3D software development, and engineering services.

Development Tools

DevToolsData exchangeConversion guidesTechnical articlesEngineering use cases

Services

Custom developmentSupportTraining

Applications

CascadeScopeEnd-user applications

Company

AboutCareersNewsIndustriesCustomer storiesContact

Open Source

Open CASCADE TechnologyDocumentationForum archiveTickets archive

Legal

Privacy PolicyTermsCookie PolicyPrivacy requestsThird-party notices
© 2026 Open CascadePart of Capgemini