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Privacy and Terms

Last updated November 11, 2026

The short version

1. What stays on your device

Everything you put inside a book stays in your web browser's own storage on the device you are using. That includes pages, pictures, PDFs and slides you import, notes, videos, GIFs and voice recordings. None of it is sent to our servers.

Clearing your browser's data for this site, or using a private window, can erase your books. Use Backup โ†’ Save backup to keep a copy you control. A backup file contains your books and settings, so store it somewhere you trust.

2. If you create an account

An account lets your profile and book list follow you between devices. If you create one, we store:

This data is stored with Supabase, a hosting provider, on servers in the United States. It is used only to sign you in and keep your list in sync. Supabase sends account emails, such as confirming your address or resetting your password.

3. Public shelf

Books are private unless you mark them Public. Your public shelf shows your profile card and the books you made public to anyone who has its link. Only make something public if you are comfortable with anyone seeing it.

4. What we don't do

5. Other services the site uses

The site is hosted by Vercel. Fonts load from Google Fonts, and some code libraries load from public code sites (cdnjs, jsDelivr). Like any website, these services can see your device's IP address when they send you a file. The planner's calendar and email features only work inside Claude and are not used on this site.

6. Deleting your information

7. Using Wondrous Library

8. Changes and questions

If these terms change, the date at the top will change too. Questions or requests, including deleting your data, can go to the person who invited you to try Wondrous Library.