Test how strong a password is and whether it has appeared in a known data breach — safely, without your password ever leaving your device.
Strength estimates how long a determined attacker would take to crack it. Breach check looks it up against billions of passwords exposed in real data breaches — if yours appears, attackers already have it, however “strong” it looks.
Reusing a breached password anywhere is one of the most common ways businesses get compromised. Need a new one? Use our generator, and store it in a proper password manager.