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Password Strength Checker

Instantly check how strong your password is β€” see the estimated crack time, entropy score and security criteria. 100% private: nothing is ever sent to a server.

100% Free 100% Private Instant
Enter a password above
β€”
Strength Score (0–100)
β€” bits
Entropy

Length

βœ• At least 8 characters
βœ• At least 12 characters
βœ• At least 16 characters

Character Types

βœ• Lowercase (a–z)
βœ• Uppercase (A–Z)
βœ• Number (0–9)
βœ• Special char (!@#$…)
πŸ”’ Your password is checked entirely in your browser. It is never sent to any server.