No data leaves your device

Everything BookMarquee stores lives exclusively in Chrome's built-in extension storage (chrome.storage.local). Nothing is transmitted to any server, third party, or external service. There is no backend, no account, and no analytics.

What is stored locally

Your X bookmarks: tweet text, author name, handle, media URLs
Collections you create and their keyword rules
Your preferences: theme and accent color
All of this can be deleted at any time by removing the extension or clearing its storage via Chrome settings.

Permissions

BookMarquee requests the following browser permissions:

storage: to save bookmarks and settings locally
Access to x.com: to intercept the browser's own GraphQL responses when you run a sync from the bookmarks page
No other sites or pages are accessed.

Third parties

BookMarquee has no external dependencies. No tracking, no advertising, no analytics of any kind.