Third-party notices
SimuSign is proprietary software. It includes and is built with the open-source software below — with thanks to their authors and communities. Each component is governed by its own license.
Software
three.js
MIT — © 2010–2025 Three.js Authors
@pixiv/three-vrm
MIT — © pixiv Inc.
@dimforge/rapier3d-compat
Apache-2.0 — © Dimforge EURL
Next.js
MIT — © Vercel, Inc.
React
MIT — © Meta Platforms, Inc.
Chakra UI
MIT — © Segun Adebayo
Emotion
MIT — © Emotion team
Framer Motion
MIT — © Framer B.V.
caniuse-lite
CC BY 4.0 — © Alexis Deveria (caniuse.com)
spaCy
MIT — © ExplosionAI GmbH
spaCy en_core_web_sm (English pipeline)
MIT — © ExplosionAI GmbH
WordNet 3.0 (lexical data inside the spaCy English pipeline)
WordNet 3.0 License — © 2006 Princeton University; the full licence text is at wordnet.princeton.edu/license
Nunito (typeface)
SIL Open Font License 1.1 — © The Nunito Project Authors
Fraunces (typeface)
SIL Open Font License 1.1 — © The Fraunces Project Authors
MIT- and Apache-licensed components retain their license and copyright notices in the shipped application bundle or, for the translation service's own components, in its server image. The full SIL Open Font License text is available at openfontlicense.org.
Avatar and sign content
The 3D avatar model is built in-house from CC0 (public-domain) MakeHuman community assets. Sign-language content — phonological sign data, translations, and grammar — is authored by SimuSign.
Our signs are originally authored by our team, with reference to publicly available ASL dictionaries. We do not copy or redistribute any dictionary's content, and we do not use sign-language datasets.