Paste a password pattern to see how attacker dictionaries, leet substitutions, and keyboard walks tear through it. Analysis runs entirely in your browser — your input is never transmitted to a server.
Don't paste your actual password. Test a pattern that resembles it — same length, same construction logic, different specifics. Security pros don't hand real credentials to third-party tools, including this one.
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Crack time
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Online, throttled attack
Strength score
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out of 4
Guesses needed
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Estimated attempts
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Analysis powered by zxcvbn (Dropbox). All processing is client-side — your input is never transmitted. Masked snippets of analyzed patterns are kept in your browser's
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