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Free Diceware Passphrase Generator

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

Runs in your browserNo sign-up, no pop-upsNo login requiredFree forever

...

48 bits

Entropy

8 hours

Crack time @ 10B guesses/sec

Number of words (5) — strong

Separator

Capitalize first letter of each wordAppend a random number (for sites that require digits)

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.

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Generate Master Password for Password Managers Generate Encryption Passphrases Generate Wi-Fi Network Passwords Generate Shared Team Secrets Generate Memorable Example Passwords for Demos

How It Works

1

Enter

Enter your text or data.

2

Process

Processed instantly in your browser. No server, no waiting.

3

Download

Save your result. Nothing is stored.

Why use ours?

✓Completely free — no hidden costs, ever

✓No account, email, or login required

✓Runs entirely in your browser — no uploads

✓Works on any device — phone, tablet, desktop

✓Open and ad-supported, with no tracking

✓Loads fast, with no installation needed

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