The native Forged Forms / Alba Hubs viewer includes the following open source libraries. Their notices, exact sources and build instructions are available without an account. This page describes browser CAD dependencies; it does not certify legal compliance of the whole service or all backend packages.
JavaScript and WebAssembly interface by Viktor Kovacs, distributed without modifications under LGPL 2.1. Full license and warranty disclaimer. Exact upstream commit: c2148e54b456b571238d35cac037d304053d64b2.
Download complete wrapper source, interface and build scripts.
CAD kernel by Open CASCADE, distributed without modifications under LGPL 2.1 with the Open CASCADE exception. Full license and warranty disclaimer · Additional exception. Exact kernel commit used by the wrapper: d2abb6d844231cb8f29be6894440874a4700e4a5.
Download complete corresponding OCCT source (about 46 MiB). Both source archives are required to rebuild the library.
You may modify these LGPL libraries and reverse engineer the combined viewer for debugging modifications under the applicable license. The viewer uses a separate replaceable JavaScript/WASM pair; a local exported copy does not require a private account secret to replace that library. These rights do not authorize access to other people's accounts or private CAD.
Unpack, build with Emscripten 3.1.69, and run a replacement locally · Offline replacement test harness. Instructions and an original-module probe are provided; a byte-for-byte or modified-kernel rebuild is not claimed.
Copyright © 2010–2026 three.js authors. Distributed under MIT, with the complete copyright, permission notice and warranty disclaimer. Upstream source.
Copyright (c) 2023 Arjun Barrett. The browser uses the copy vendored in Three.js, not the separate 0.8.3 development package in the application lockfile. Distributed under MIT; complete copyright, permission notice and warranty disclaimer. Exact upstream release.
Component versions and distributed file hashes · Exact archive origins and hashes.