Teach Password Security Concepts
Use entropy and crack time estimates to teach students and employees about why certain passwords are weak.
Your password is never sent to any server.
Education tips
Try "password" vs "P@ssw0rd" vs a random 16-character string. The entropy display shows exactly how much more secure each step is.
Entropy is measured in bits. Each additional bit doubles the guesses needed. Going from 40 to 60 bits means 1 million× more guesses — visually powerful.
The crack time assumes 10 billion guesses per second — the speed of modern GPU-based cracking. Even "complex-looking" short passwords fall in seconds.
Common password attacks don't try all combinations — they try dictionary words, common substitutions (@ for a), and known leaked passwords first.
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