A simple, open-source, client-side passphrase generator. It picks words from the EFF long word list (7776 words) using your browser's cryptographically secure random generator. Nothing leaves your browser, and it works offline.
Diceware is a method for building memorable, high-entropy passphrases by choosing random words from a fixed list. Each word from the EFF long list adds about 12.9 bits of entropy, so six words give roughly 78 bits, which is strong for most uses.
Yes. Words are chosen with crypto.getRandomValues, your browser's cryptographically secure random generator, using rejection sampling so every word is equally likely with no bias. If you want to remove all trust in software, you can still roll physical dice against the same word list.
Six words (~78 bits) is a solid default. Use seven or eight for high-value secrets like a master password or a wallet passphrase. More words means more security but more to type.
No. This site is a static page that runs entirely client-side. The passphrase is generated in your browser and never sent anywhere. You can disconnect from the internet and it still works. Treat the result as a secret.
Yes! You can find the full source code on GitHub. The word list is the EFF long list, used under CC BY 3.0 US.
Disclaimer: This tool is provided "as is" with no warranties. A passphrase is only as safe as the device that generates it; prefer a trusted, malware-free machine for high-value secrets.