Password Strength Checker

See how long it would actually take to crack a password, in your browser.

Password (never leaves your browser)

All analysis runs in your browser. The password is never sent anywhere.

Rule of thumb

Aim for 14+ characters using 4 random words (a passphrase) or a long random string from a password manager. Length matters more than fancy symbols.

Acerca de esta herramienta

Type a candidate password and get a strength score, an estimated crack time, and concrete feedback (length, common patterns, dictionary words). The local check is offline — your password never leaves your browser. Common r/cybersecurity question.

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