Password generator

Free · no sign-up

Create strong, random passwords locally — nothing is sent anywhere, it all happens in your browser.

Select at least one character set.

Strong103 bits of entropy

Create strong, random passwords that are genuinely hard to crack — right in your browser. This free password generator builds a password from the character sets you choose, at the length you set, using your browser's cryptographically secure randomness. Nothing is sent anywhere: the password is generated on your device and never leaves it.

✓Cryptographically secure randomness (Web Crypto), not Math.random
✓Choose length and character sets: upper, lower, numbers, symbols
✓Live strength meter with an entropy estimate in bits
✓Option to avoid look-alike characters (0/O, 1/l)
✓Generated entirely in your browser — nothing is uploaded

Who it's for

Creating a unique password for a new account
Generating a strong master password for a password manager
Making Wi-Fi or device passwords that resist guessing
Anyone who reuses passwords and wants to stop

How it works

1Set the password length with the slider.
2Pick the character sets you want to include.
3Optionally turn on “avoid look-alike characters”.
4Copy your password — a fresh one is a click away.

Frequently asked questions

How secure are these passwords?+

They're generated with the Web Crypto API (crypto.getRandomValues) — the same secure randomness browsers use for cryptography, not the predictable Math.random. With a good length and mixed character sets, that makes them very hard to guess or brute-force.

Is my password sent to a server?+

No. Everything happens on your device in the browser. The password is never transmitted, logged or stored anywhere by us.

How long should my password be?+

Longer is stronger. 16+ characters with mixed sets is a solid default; for important accounts use 20 or more. The strength meter shows the entropy so you can see the effect of each change.

What is entropy in bits?+

It's a measure of how unpredictable a password is — each extra bit doubles the number of possibilities. Roughly, 60 bits is okay, 75+ is strong and 100+ is very strong.

Should I use symbols?+

Yes, where the site allows them — every extra character set makes a password harder to crack. If a site rejects symbols, add a few more characters to compensate.