Made on your device
Passwords are created by your own browser. This page has no server-side code at all.
Free · No sign-up · Nothing stored
Free Strong Password Generator
Create secure, random passwords and passphrases in one click. It all happens in your browser: nothing is saved, logged or sent anywhere.
Password generator
Very strong104 bitsTime to crack: longer than the age of the universe
Your passwords never leave this page. They're made right here in your browser. Nothing is saved, logged or sent anywhere, so use it freely.
Why PassGen is safe to use
Nothing is kept
No database, no cookies, no analytics. We never see your passwords, so there is nothing to leak.
Truly random
Built on the Web Crypto API, the same secure random source browsers use for encryption.
How it works
Private by design, in three simple steps
Pick your options
Choose a length and character types, or switch to an easy-to-remember passphrase.
We generate it locally
Your browser creates a new random password instantly. It is never sent anywhere.
Copy and use it
One click copies it. Save it in your password manager. Close the tab and it is gone from here.
Stay safe
What makes a strong password?
A strong password is long, random and unique. Random characters from a large set make it practically impossible to guess, even for a computer trying billions of combinations per second.
- Use a different password for every account, so one leak cannot unlock the rest.
- Go for 16+ characters. Length matters more than complexity.
- Keep passwords in a trusted password manager instead of your memory or notes.
- Turn on two-factor authentication (2FA) wherever it is offered.
- Change a password right away if a service reports a breach.
- Never reuse or lightly tweak old passwords like Summer2024 → Summer2025.
FAQ
Frequently asked questions
Is this password generator really free?
Yes. PassGen is completely free, with no sign-up, no limits and no ads. Generate as many passwords as you like.
Do you store or see the passwords I generate?
No. Every password is created inside your own browser and never leaves your device. There is no server, database, account or log involved, so we have nothing to store and nothing to see. Close the tab and it is gone.
Is it safe to use an online password generator?
It depends on where the password is created. Many online generators build passwords on a server, so you have to trust them. PassGen creates passwords only inside your browser and never sends them anywhere. You can check this yourself: open your browser's developer tools, go to the Network tab and generate a few passwords. You'll see no requests.
How random are the passwords?
PassGen uses the Web Crypto API (crypto.getRandomValues), the same cryptographically secure random source browsers use for encryption. It also uses rejection sampling so every character is equally likely.
How long should my password be?
Use at least 16 characters with a mix of letters, numbers and symbols for important accounts. Longer is always stronger: every extra character multiplies the number of guesses an attacker needs.
What is a passphrase and should I use one?
A passphrase is a string of random words, like Maple-Tiger-Ocean-Violin. It is easier to remember and type than random characters. Use seven or more words for strong protection.
How is password strength calculated?
The meter measures entropy: how many guesses an attacker would need, based on the length and the number of possible characters or words. Crack times assume a powerful offline attack of 100 billion guesses per second. Aim for "Strong" or "Very strong".
Does PassGen work offline?
Yes. Once the page has loaded, generating passwords needs no internet connection because nothing is sent anywhere.