Type a password to see how strong it actually is — entropy, estimated
crack time under different attack conditions, and what's still missing.
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Security policy
Choose which requirements a password must meet — the checklist and pass/fail badge below update to match
Minimum length8 characters
Maximum length64 characters
Require uppercase letter
Require lowercase letter
Require number
Require symbol
Block commonly leaked passwords
Block sequences & repeated characters
Try a password
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Enter a password— bits of entropy
Estimated crack time
Assuming an attacker knows only the password's length and character types
0
Strength score / 100
Attack scenario
Time to crack
Character mix
A simplified, illustrative heuristic — not a substitute for
a full library like zxcvbn, and it doesn't check real-world breach
databases.