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Password Strength Checker

Check how strong a password is and get specific tips to improve it. Private — nothing is sent anywhere.

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Checked entirely in your browser — nothing is sent anywhere or stored.

Analyzes length, character variety, common patterns, and known weak passwords to estimate real-world password strength, with clear pass/fail feedback on each factor.

常见问题解答

Is my password sent anywhere to be checked?
No. Every check runs locally in your browser — nothing you type here is ever transmitted or stored.
Why did a long password still score as weak?
Length alone isn't enough — passwords using only lowercase letters, common words, or predictable patterns like "123" score lower even if they're long.
What should I do if my password scores poorly?
Follow the specific unmet checks shown below the meter — usually adding character variety and length, and avoiding common words or sequences, is enough to reach a strong score.

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