The format has a job.
You want a random password made from words that is easier to read, type or copy from paper.
Utilities & Security
Generate a passphrase you can actually type.
Build a random multi-word passphrase with your choice of word count, separator, capitalisation and optional number.
Words4–10
Your passphrase
Passphrases are easier to type and remember. Use a unique one for every important account.
Useful to know
Four things worth knowing.
Similar-looking strings are not interchangeable.
A memorable sentence you invent yourself is not the same thing as a randomly generated passphrase.
Check the exact requirement.
Use a unique passphrase for each important account and increase the word count when the service allows it.
Use the purpose-built version.
Pick an unmistakable separator if you plan to write it down, and leave the generated words random.