Password / Entropy Tools

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Entropy meter

Type a password to measure:

Charset size: 0

Entropy: 0.0 bits

Online crack time (throttled, 1,000 guesses/sec): instant

Offline crack time (GPU, 100B guesses/sec): instant

This is a rough estimate based on character variety. It won't catch dictionary words or leet substitutions, so something like P@ssw0rd will look stronger here than it really is.

Random password generator

Length: 20

Character classes Lowercase a–z Uppercase A–Z Digits 0–9 Symbols !@#$%^&*()-_=+[]{};:,.<>? Exclude ambiguous (0 O o 1 l I |)

Generated password:

EFF passphrase generator

Word count: 6 Separator: Capitalize first letter Append random digit

Generated passphrase:

Wordlist from the Electronic Frontier Foundation, eff.org, CC-BY 3.0 US.