Last updated: 2026-05-02
ThreadNote is a browser extension that adds bookmarking, inline-reply, and navigation features on top of the Claude.ai web interface. It is provided by Fortun8.
You may install and use ThreadNote on any browser you control, for personal or commercial use, free of charge for the free tier. ThreadNote Pro features (when available) are sold under a separate subscription.
ThreadNote is provided "as is" without warranty of any kind. Claude.ai's interface changes regularly; the extension may break temporarily after Anthropic ships UI updates and we patch as fast as we can. We don't guarantee uninterrupted operation.
To the maximum extent permitted by law, Fortun8 is not liable for any indirect, incidental, or consequential damages arising from the use of ThreadNote. Your data lives in your browser; you are responsible for backing it up via the JSON export feature.
You can stop using ThreadNote at any time by uninstalling the extension. We may discontinue ThreadNote with reasonable notice; if a paid subscription is active at the time of discontinuation, we'll prorate refunds.
We may update these terms; we'll bump the "last updated" date. Continued use after a change constitutes acceptance.