Check how strong your password is and get feedback on how to improve it.
Password strength analyser using the zxcvbn algorithm. Reports estimated crack time, score (0-4), and specific weakness patterns: dictionary words, keyboard walks, common substitutions, and repeats.
zxcvbn (Dropbox, 2016) performs pattern-based strength estimation: ranked dictionary matching (passwords, surnames, English words, Wikipedia), keyboard adjacency graph walks (qwerty, dvorak, keypad), regex matching (dates, years, repeats), and l33t substitution matching. Entropy calculated from match patterns; guesses-to-crack estimated against offline fast hash (10^10/s) and online attack models. Score 0-4 maps to crack-time thresholds.
Memorable passphrase-style password. The "Mixed" style covers uppercase, lowercase, numbers, and symbols in one shot — the kind of password you can actually remember without writing it down.
Generated locally in your browser using crypto.getRandomValues. Nothing is sent to any server. Refresh the page to discard.