Password Strength Checker — Crack Time & Improvement Tips

Type a password and see its strength score, estimated crack time, pattern warnings, and improvement tips. 100% browser-based — your password never leaves your device.

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Frequently Asked Questions

Is my password sent to your server?

No. All analysis runs entirely in your browser. Your password never leaves your device.

How is crack time estimated?

We estimate entropy from character set size and length, then calculate time at typical attack speeds.

What patterns are detected?

Common words, keyboard walks, repeated characters, sequential numbers, and dictionary patterns.