Developer tool
Strong password generator
Make a password nobody can guess, or a passphrase you can actually remember. It's created on your device and never sent anywhere.
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Type
Your password
More options
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What makes a password strong
- Length matters most. Each extra character multiplies the number of guesses needed. Aim for 14 or more characters, or 5 or more words.
- Use a different password for every site. When one site is hacked, the same password won't open your other accounts.
- Use a password manager to remember them, and turn on two-factor login for email and banking.
Strength is shown in bits of entropy: how many yes/no guesses the password is worth. Under 50 bits is weak, 50–80 is good, and over 80 is very strong.
Are these passwords really random?
Yes. They use your browser's cryptographic random generator (crypto.getRandomValues), the same kind used for encryption keys.
Do you save the passwords?
No. They're made in your browser, aren't stored, and disappear when you leave the page.
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