THE DETAILS THAT MATTER
Licences
Credits for the artwork, fonts, software and data that Sylas includes, and the licences they are used under.
Effective October 22, 2026
Emoji artwork
Sylas uses emoji from Google Noto Emoji, copyright Google LLC. The animated artwork is used under the Creative Commons Attribution 4.0 licence, and the static artwork under the Apache License 2.0.
Sylas has modified this artwork: it is converted to SVG and CSS, placed on round backgrounds, recoloured in places, and some emoji have new animation. Google does not endorse Sylas.
Fonts
These fonts are used under the SIL Open Font License 1.1:
- Inter, copyright The Inter Project Authors
- Newsreader, copyright The Newsreader Project Authors
- Archivo, copyright The Archivo Project Authors
- Roboto, copyright The Roboto Project Authors
- Caveat, copyright The Caveat Project Authors
Bundled software
The Sylas desktop app includes or downloads:
- FFmpeg 8.0.1, used unmodified under the GNU Lesser General Public License 2.1 or later. Its source is available at ffmpeg.org. FFmpeg is a trademark of Fabrice Bellard and is not affiliated with Sylas.
- DuckDB, copyright the DuckDB Foundation, MIT License
- ONNX Runtime, copyright Microsoft Corporation, MIT License
- The bge-small-en-v1.5 embedding model, copyright the Beijing Academy of Artificial Intelligence, MIT License
- Node.js, copyright the OpenJS Foundation and contributors, MIT License
Open-source libraries
Sylas is built with many open-source libraries, used under the MIT, ISC, BSD, Apache 2.0, Mozilla Public License 2.0 and Unicode licences. They include Lucide, KaTeX, PDF.js, SheetJS, Shiki, Lottie, emoji-picker-element and Symphonia. We are grateful to their authors.
The Sylas desktop app carries the full licence text of every third-party component it includes.
Data
This product includes GeoLite2 data created by MaxMind, available from maxmind.com.
Contact
For licence questions or a copy of a licence text, email support@getsylas.com.