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Passphrase Generator

Diceware-style word passphrases with the entropy maths shown.

Free No account Runs on this device
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TOOL PASSPHRASE-G

What this tool does

About the passphrase generator

Crypto-random words, honest bits, crack-time context.

How to use it

  1. Choose 4+ words and separator.
  2. Generate.
  3. Read the entropy and crack-time lines.
  4. Store in a manager; the phrase is for the few you must TYPE.

Useful for

  • Make a master password you can actually remember.
  • Generate Wi-Fi phrases guests can type.
  • Replace Password123! with something honestly strong.

Straight answers

Passphrase Generator FAQ

How do four words beat P@ssw0rd1?

Attackers guess PATTERNS: capital-word-digit-symbol is template one. Four random words from a big pool is ~2⁵² possibilities of pure chance — the entropy line shows the bits, the crack-time line translates them into geologic patience.

The word pool is public — doesn’t that break it?

No: the SELECTION is the secret, not the pool (Kerckhoffs’s principle). What kills passphrases is choosing meaningful words yourself — your pets and towns are in every cracking list. Hence crypto-random only.