Free online password strength checker that evaluates password security, provides improvement suggestions, and estimates crack time.
TL;DR: Free online password strength checker with 9 weighted checks plus length bonus scoring, crack time estimation, and improvement suggestions. Evaluation runs locally in your browser, passwords never uploaded.
This tool runs entirely in your browser. Open DevTools → Network panel and search your input — it appears in no request.
FAQ
Completely free, no registration required. Evaluate password strength in real time in your browser — all calculations run locally with no usage limits.
The score is a weighted sum of 9 checks including length, upper/lowercase letters, digits, special characters, common-password detection, and sequential/repeated characters, plus a length bonus, up to 100.
The estimate is based on charset size and password length to compute the search space, assuming 10 billion guesses per second. Actual crack time varies by attacker hardware and hash algorithm — use it as a reference only.
No. All evaluation runs locally in your browser. Passwords are never sent to any server or recorded — safe to use.
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