How to make a passphrase
- Choose how many words and the separator.
- Add capital letters or a number if the site asks for them.
- Copy the passphrase, and use it only once.
About this tool
A passphrase is several random words, such as those a person can remember and type. This tool picks words from the EFF Large Wordlist of 7,776 words, using the secure random generator in your browser. Each word adds about 12.9 bits, so six words give about 77 bits, far stronger than most passwords people invent.
Common questions
How many words do I need?
Five words is a good minimum for an account, and six or more for a password manager or an encrypted disk.
Where does the word list come from?
It is the EFF Large Wordlist for Passphrases, made by the Electronic Frontier Foundation and shared under a Creative Commons Attribution licence.
Is it free to use?
Yes. There's no sign-up, and you can use it as often as you like.
Is my text uploaded anywhere?
No. This tool runs inside your browser, so what you enter stays on your device.
Do I need to install anything?
No. It works in your browser on a computer or a phone.