Password Strength Checker
Analyze your password strength, entropy, and estimated crack time. Nothing is ever sent to any server.
—
0 bits entropy
0 bits entropy
—
Estimated Crack Time
0
Length
Checks
Tips
About Password Security
Password strength depends on length, character variety, and unpredictability. Longer passwords with mixed character types are exponentially harder to crack. This tool estimates the entropy (randomness) and crack time assuming 10 billion guesses per second. Your password never leaves your browser.