CompareYourSecurity ← Back to site

Passphrase Generator

Create a passphrase that's easy to remember and hard to crack.

Everything runs in your browser. Nothing you type is stored, logged, or sent anywhere.
 
Est. crack time: —

Words chosen with your browser's secure random generator. Nothing you generate is stored or sent.

Want a professional to double-check?

Get a free, no-obligation home security assessment.

Get a free quote

Why use a passphrase instead of a password?

A passphrase is a string of random words — like river-copper-lantern-mosaic — that's dramatically easier to remember than a jumble of symbols yet far harder to crack. This free passphrase generator picks words at random using your browser's secure random generator and lets you tune the number of words, separator, capitalization, and whether to append a number and symbol for sites that demand them. Because each added word multiplies the number of possible combinations, a four-to-six word passphrase reaches a level of strength that would take centuries to brute-force.

The famous "correct horse battery staple" principle holds: length and randomness beat complexity. A memorable passphrase is ideal for the handful of master credentials you actually need to type — your password manager's master password, your device login, or your email. For everything else, let a password manager generate and store unique random passwords. Everything here runs locally in your browser; no passphrase you generate is ever stored, logged, or sent anywhere.

Frequently asked questions

Are passphrases actually secure?
Yes — a four-to-six random-word passphrase has enormous entropy and resists brute-force attacks for centuries, while being far easier to remember than a random symbol password. The key is that the words are chosen randomly, not by you.
How many words should I use?
Four is a solid minimum; five or six is excellent for high-value accounts like your password manager or email. Add a number and symbol only if a site requires them.
Is my passphrase sent anywhere?
No. Words are chosen locally with your browser's secure random generator, and nothing you generate is stored or transmitted.
Where should I use a passphrase?
Use memorable passphrases for the few credentials you must type from memory (device login, password-manager master password). Let a password manager handle unique random passwords for everything else.

Embed this free tool on your site

Copy and paste this snippet anywhere. It's free to use with attribution.

100% client-side · no tracking · no data leaves your device.
Estimates are for guidance only. Replace this footer with your brand.