Password Entropy Checker

Analyze password strength and calculate entropy bits.

SHANNON ENTROPY SCORE

0 Bits

Very Strong

Estimated Crack Time: Instant

Frequently Asked Questions

Password entropy measures the randomness and unpredictability of a password in bits. Higher entropy means exponential protection against brute-force attacks.

Passwords with 60+ bits of entropy are generally resistant to basic attacks, while 80+ bits are considered uncrackable with current technology.