Password Strength Checker

Score passwords in real time with entropy, character-class analysis, and actionable improvement tips. 100% client-side — nothing is sent anywhere.

Password Analysis

Enter a password

—waiting

Entropy

0 bits

Fast hash

—

~10¹⁰ guesses/s

Slow hash

—

~10⁴ guesses/s

At least 8 characters

At least 12 characters

At least 16 characters

Has uppercase letter

Has lowercase letter

Has digit

Has symbol

Not in top common passwords

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