Free tool
Passphrase generator
Memorable passphrases from EFF's long word list, the same one Vallkey's apps use, with their strength in bits.
Runs entirely in your browser. Vallkey never sees what you make or check here.
How it works
Each word is picked at random from EFF's long list of 7,776 words, with your browser's cryptographically secure random numbers. Every word adds log₂ 7,776, about 12.9 bits.
Capitals at the start of each word add nothing: anyone guessing would try them. A number adds a little, and helps with websites that insist on one.
The list is downloaded once from this site; the passphrase is made on your device and never leaves it.
Questions
What's a passphrase?
A password made of random words, like 'velvet-orbit-canyon-tulip-mosaic'. It's easy to type and to remember, and just as hard to guess as a jumble of characters, when the words are chosen at random.
How many words do I need?
Five words from this list give about 64 bits; six give about 77. For a master password, use at least five.
Where do the words come from?
The Electronic Frontier Foundation's long word list: 7,776 common, distinct English words. Vallkey's apps use the same list.
Can I pick words myself?
Don't: people choose predictable words. The strength comes from the words being picked at random, which is what this tool does.
More free tools
- Password generatorRandom passwords of any length, made in your browser with its secure random numbers. Nothing is sent anywhere.
- Strength checkerHow long your password would hold out against guessing, with the same estimator Vallkey's Security view uses. Nothing leaves your browser.
- Breach checkCheck whether a password appears in known data breaches, without the password, or even its full hash, leaving your browser.
- Emergency Kit templateA page to print and fill in by hand: where your accounts are, and how the people you trust can reach them if they need to.
Let Vallkey remember them for you.
Free forever for unlimited passwords and devices. No card needed.