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Rhad ac am ddim Diceware Passphrase Generator

Generate memorable, high-entropy passphrases by combining random words. Configurable word count, separator, and capitalization β€” uses cryptographically secure randomness.

Runs in your browserNo sign-up, no pop-upsNid oes angen mewngofnodiAm ddim am byth

...

48 bits
Entropy
8 hours
Crack time @ 10B guesses/sec

Why diceware? Memorable phrases of random words have huge entropy and are easier to remember than gibberish like β€œX#9mP$qZ”. A 5-word phrase has more entropy than a 10-character random password with mixed case + symbols.
πŸ”’ All randomness comes from crypto.getRandomValues() in your browser. No words, passphrases, or any data are sent anywhere.

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Generate Master Password for Password ManagersGenerate Encryption PassphrasesGenerate Wi-Fi Network PasswordsGenerate Shared Team SecretsGenerate Memorable Example Passwords for Demos

Sut Mae'n Gweithio

1
Ewch i mewn
Rhowch eich testun neu ddata.
2
Proses
Wedi'i brosesu ar unwaith yn eich porwr. Dim gweinydd, dim aros.
3
Lawrlwythwch
Arbedwch eich canlyniad. Nid oes dim yn cael ei storio.

Pam defnyddio ein un ni?

βœ“Completely free β€” no hidden costs, ever
βœ“No account, email, or login required
βœ“Runs entirely in your browser β€” no uploads
βœ“Works on any device β€” phone, tablet, desktop
βœ“Open and ad-supported, with no tracking
βœ“Loads fast, with no installation needed

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