Passphrase Generator
Generate memorable passphrases using uniform random selection from a large curated word list. Adjust the word count, separator and capitalisation, with the resulting entropy explained in plain language.
This tool runs entirely in your browser. Nothing you type or generate is uploaded, stored or logged.
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Each word adds about 12.92 bits. Four words is already stronger than most passwords people choose.
Entropy, honestly explained
The bundled word list contains 7,776 entries. Because 7,776 is exactly 6⁵, a uniformly random word carries exactly log₂(7776) ≈ 12.92 bits. Six words therefore represent about 77.5 bits.
That figure is an upper bound. It holds only if the words really were chosen at random. It does not account for a passphrase you invented yourself, one built from words others would guess, or one you have reused across several services.
Passphrases trade a little strength for something you can actually recall correctly. That is a worthwhile trade, but reuse remains the single biggest cause of account compromise — pair any passphrase with a password manager and a second factor.
Word list: EFF Large Wordlist (c) 2016 Electronic Frontier Foundation, CC BY 3.0. Licence terms.