Free tool · Runs in your browser

Check a password. Keep it yours.

Data breaches have exposed hundreds of millions of passwords. This check tells you whether a password you use is among them, without the password ever leaving your device.

How it stays private: the password is hashed here in your browser, and only the first 10 characters of that hash are sent for the check. The password itself is never sent, we never see it, and it is never stored. The field clears itself after every check.

Uneasy about typing a current password? Check an old or reused one instead. Reused passwords are the ones that matter most after a breach.

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