Your Diceware Passphrase Generator
Generate a strong, memorable passphrase using the real Diceware method: cryptographically random word selection from a large wordlist.
- Free to use
- No signup
- Nothing to install
- Runs in your browser
6 words -> correct-horse-battery-staple-plasma-window (about 77 bits of entropy with this wordlist size) — genuinely stronger than most 12-character random-character passwords, and considerably easier to type and remember.Open the Diceware Passphrase Generator
Illustration. Open the tool for the real thing.
What is the Diceware Passphrase Generator?
Diceware is a method for generating passphrases by rolling physical dice to randomly pick words from a fixed, published wordlist — originally created by Arnold Reinhold in 1995, and the same underlying idea behind the well-known "correct horse battery staple" style of password advice. This tool does the same thing digitally: it uses your browser's cryptographically secure random number generator (not a weaker predictable one) to pick each word, so the result has real, calculable entropy rather than being pattern-based like a typical human-invented passphrase.
Choose how many words you want (5 or 6 words is a strong, commonly recommended range) and the tool shows you the exact entropy in bits alongside the passphrase, so you can see precisely how strong it is rather than guessing. Because it's made of real dictionary words rather than random characters, a Diceware passphrase is genuinely easier to memorize and type accurately than an equivalent-strength string like `xQ7$mK9#vL2!`.
3 steps to your result
Open the tool and follow along. Nothing to install.
What you get
Uses the browser's crypto API, not a weaker Math.random()-based generator, for real unpredictability.
See the precise bits of entropy for your chosen word count, not a vague strength label.
Words are picked from an actual large word list, the same method security professionals recommend.
Choose 4-8 words and a separator character to fit different password rules.
AZRS tools are free to open and use.
It opens in your browser, so there is nothing to download.
Used for
Pick one to see how it fits.
Anyone setting up a password manager's master password
The one password you actually have to memorize benefits most from being both strong and rememberable.
Try it freePeople choosing a WiFi or device encryption passphrase
Something typed occasionally by hand needs to be memorable, not just random.
Try it freeSecurity-conscious users replacing weak reused passwords
Get real, measurable entropy instead of a password based on a predictable pattern.
Try it freeHow it compares
A plain look at this tool next to the usual alternative.
| This utility | Desktop software | |
|---|---|---|
| Install | Nothing to install | Usually an app or program to install |
| Account | No signup | Depends on the product |
| Cost | Free to use | Free or paid, depends on the product |
| Where it runs | In your browser tab | On your computer |
Questions people ask
What is Diceware?
A method invented by Arnold Reinhold that generates passphrases by using dice rolls to randomly select words from a large published wordlist — this tool replicates that using a cryptographically secure digital random number generator instead of physical dice.
How many words should I use?
5-6 words is a commonly recommended range for a strong standalone passphrase; more words add more entropy for higher-security needs.
Is this actually more secure than a short complex password?
A multi-word Diceware passphrase typically has more real entropy than a short password packed with symbols, while being much easier to type and remember correctly.
Does it use real randomness?
Yes — it uses the Web Crypto API's cryptographically secure random number generator, not JavaScript's weaker default Math.random().
Is the generated passphrase stored or sent anywhere?
No, it's generated and shown entirely in your browser and never transmitted.
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Try the Diceware Passphrase Generator now
Generate a long, truly random, memorable passphrase from real dice-equivalent word. Free to use.
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