Password strength checker

Estimates how many guesses an attacker would need, using the same shortcuts real cracking tools take — common passwords, dictionary words, names, dates, keyboard patterns and predictable substitutions like @ for a. A long, unpredictable passphrase beats a short password full of symbols.

Runs entirely in your browser. Nothing you enter is sent to a server or stored.

Password to check

Try a password like yours rather than your real one — good practice with any online checker, even this one.