confBuild Third-Party Open Source Notices
Last updated: 2026-06-11

This notice covers the Open CASCADE Technology WebAssembly integrations
distributed with the confBuild web application.

Open CASCADE Technology (OCCT)
------------------------------
confBuild uses Open CASCADE Technology through JavaScript/WebAssembly
integrations for exact CAD modeling and STEP/IGES/BREP import workflows.

License: GNU Lesser General Public License version 2.1 with the Open CASCADE
Exception 1.0.

Official licensing page:
https://dev.opencascade.org/resources/licensing

Source code:
https://github.com/Open-Cascade-SAS/OCCT

License texts:
LGPL-2.1.txt
OCCT-exception-1.0.txt

opencascade.js 1.1.1
--------------------
confBuild uses opencascade.js as a JavaScript/WebAssembly port of Open CASCADE
Technology for exact modeling operations.

Package version: 1.1.1
Package license: LGPL-2.1-only
Underlying OCCT version documented by the package: V7_4_0p1
Distributed WebAssembly artifact in the app: /assets/opencascade/opencascade.wasm.wasm

Source release:
https://github.com/donalffons/opencascade.js/releases/tag/v1.1.1

Repository:
https://github.com/donalffons/opencascade.js

npm package tarball:
https://registry.npmjs.org/opencascade.js/-/opencascade.js-1.1.1.tgz

License text:
opencascade.js-1.1.1-LICENSE.txt

occt-import-js 0.0.23
---------------------
confBuild uses occt-import-js for STEP, IGES, and BREP import through
Open CASCADE Technology compiled to WebAssembly.

Package version: 0.0.23
Package license: LGPL-2.1
Underlying OCCT version documented by the 0.0.23 release: 7.6.1
Distributed WebAssembly artifact in the app: /occt-import-js.wasm

Source release:
https://github.com/kovacsv/occt-import-js/releases/tag/0.0.23

Repository:
https://github.com/kovacsv/occt-import-js

npm package tarball:
https://registry.npmjs.org/occt-import-js/-/occt-import-js-0.0.23.tgz

License texts:
occt-import-js-0.0.23-LICENSE.md
occt-import-js-0.0.23-license.occt.txt
occt-import-js-0.0.23-license.occt-import-js.txt

Source and modification status
------------------------------
The confBuild repository does not maintain local patches to OCCT,
opencascade.js, or occt-import-js for these package-distributed WebAssembly
artifacts as of this notice date. If a deployed artifact is changed in the
future, this notice should be updated with the corresponding changed source.

The source and build materials for the package-distributed WebAssembly
artifacts are available from the upstream source, release, and package links
listed above. For questions or source material corresponding to a specific
deployed binary, contact daniel@confbuild.com.