Password Entropy
Calculate password strength and entropy bits.
What does Password Entropy do?
The Password Entropy Calculator measures the strength of a password by calculating its entropy in bits. Entropy is based on password length and the size of the character set used. Higher entropy means a stronger password.
Use Cases
- •Evaluate password strength before using it
- •Understand how charset affects security
- •Compare entropy of different password strategies
- •Educational tool for learning about password security
Frequently Asked Questions
What is entropy?
Entropy measures randomness in bits. A higher entropy means more possible combinations, making the password harder to crack.
What is a good entropy value?
60+ bits is considered strong for most purposes. 80+ bits is very strong and resistant to brute force attacks.
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