🎲
🗝️

Generate Master Password for Password Managers

A diceware passphrase is ideal for your password manager master key — high entropy, memorable.

Non é necesario iniciar sesión

...

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 “X#9mP$qZ”. A 5-word phrase has more entropy than a 10-character random password with mixed case + symbols.
🔒 All randomness comes from crypto.getRandomValues() in your browser. No words, passphrases, or any data are sent anywhere.

Master Password tips

🗝️

Your master password must be both memorable (you can't reset it) and strong. A 6-word diceware phrase nails both — 60+ bits of entropy, easy to remember.

💡

Use a memorable but non-personal phrase. Don't pick words that have meaning to you ("cat dog house" is too predictable). Trust the random generator.

🔐

Master passwords protect everything else. Make this 5-6 words minimum. Anything less is risky.

📋

Practice typing it a few times before saving anywhere. Once you can type it from muscle memory, you'll never forget it.

Como funciona

1
Entra
Enter your data into the tool above. Everything stays local to your browser.
2
Proceso
The tool processes your data instantly in your browser using JavaScript. No server, no waiting.
3
Descargar
Get your result instantly. Nothing is stored after you leave the page — complete privacy.

Por que usar o noso?

Completamente gratuíto, sen custos ocultos, nunca
Non se precisa ningunha conta, correo electrónico ou inicio de sesión
Os ficheiros nunca saen do teu dispositivo
Non hai límites de tamaño de ficheiro
Non hai marcas de auga en ningunha saída

Also check out…

Preguntas frecuentes