Strong Password Generator

Generate cryptographically strong, high-entropy passwords. Configurable character sets with live entropy estimation.

Generated 100% in your browser. Nothing is ever transmitted.

Primary Password

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Entropy Score: 102 bits Very Strong

Password Length: 16

Quantity:

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How Password Entropy is Calculated

Entropy measures the unpredictability of a password in bits: E = L × log₂(N), where L is length and N is pool size. A password with 80+ bits would take modern supercomputers billions of years to crack via brute force.

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