About the Passphrase Generator
Create passwords that are both strong and memorable: several random words from the EFF diceware list, with your choice of separator, capitals and numbers.
Key features
- EFF's 7,776-word diceware list
- 4 to 10 words
- Choice of separator
- Optional capitals and a number
- Entropy shown in bits
- Secure randomness in your browser
Strong passwords you can actually remember
A passphrase of random words is one of the best kinds of password: long enough to resist cracking, and easy to remember. Pick how many words you want and generate.
Passphrase strength
| Words | Entropy | Good for |
|---|---|---|
| 4 | ~52 bits | Low-value accounts with rate limiting |
| 5 | ~65 bits | Most online accounts |
| 6 | ~78 bits | Email, banking, password manager |
| 7+ | 90+ bits | Encryption keys, high-value secrets |
Tips
- Don't change the words to make a sentence; the randomness is what protects you.
- Use a different passphrase for every important account, or store them in a password manager.
- Write it down safely at first, then destroy the note once you remember it.
Word list: EFF Long Wordlist by the Electronic Frontier Foundation, licensed under CC BY 3.0.
Related tools
Password strength checker, password generator, and secret key generator.
How to use the Passphrase Generator
- Enter your text, password or settings in the tool above.
- Results appear instantly and are calculated in your browser.
- Read the explanation and warnings under the result.
- Copy what you need. Nothing is uploaded or stored.