# What happens if I clear my browser data or cookies?

The web app keeps your notes in your browser's own storage, so clearing site data for PrivacyNotes wipes the local copy and signs you out. Everything that already synced is safe: sign in with your 12-word phrase and it comes back. Anything that had not synced yet is gone, because we never had a copy of it.

So do two things. Check that the footer says "Synced" before you clear anything, and keep your phrase in a password manager, because a cleared browser cannot ask you nicely for it. The desktop and mobile apps are not affected at all: they keep their own storage, which a browser cleanup never touches.

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Source: https://privacynotes.app/help/clear-browser-data