The Passphrase Generator builds strong yet memorable passwords by stringing together random words, diceware-style. Choose how many words, the separator, and whether to add capitals, numbers or symbols — every word is picked with the browser's cryptographically secure random generator.
Why use a passphrase?
A passphrase made of several random words is far easier to remember than a string of random characters, yet can be much stronger. Four or five random words from a large list provide enough entropy to resist offline cracking, while still being something you can actually type from memory.
This approach was popularised by the 'diceware' method and the famous XKCD 'correct horse battery staple' comic.
Features
- 3–8 random words drawn from a curated word list
- Choose your separator: hyphen, dot, underscore, space or none
- Optionally capitalize words and append a number or symbol
- Live entropy estimate so you know how strong it is
- Cryptographically secure randomness via crypto.getRandomValues
Private by design
Passphrases are generated locally in your browser and never leave your device. Refresh as many times as you like until you get one you like.
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