Password Generator

Create strong, random passwords in one click. Pick the length and characters, and see how strong the result is. Passwords are made on your device and never sent anywhere.

What makes a password strong?

A strong password is long, random and unique. Attackers use software that tries billions of guesses, starting with common words, names and patterns like "Summer2026!". A random string of characters gives them no patterns to exploit, and each extra character multiplies the number of guesses needed.

How long would it take to crack?

Password strength is measured in bits of entropy. A 16-character password using upper and lowercase letters, numbers and symbols has over 100 bits of entropy, far beyond what can be guessed by brute force with today's technology. An 8-character password from the same set has around 50 bits, which is much weaker against a determined attacker.

Password tips

  • Use a password manager to store a different random password for every site.
  • Turn on two-factor authentication for email, banking and social accounts.
  • Never reuse passwords. One leaked site should not unlock your other accounts.
  • Change a password right away if a service tells you it was involved in a breach.

How this generator works

The tool uses your browser's cryptographic random number generator to pick each character, makes sure every character type you selected appears at least once, and then shuffles the result. Nothing is logged, saved or sent over the network.

Last reviewed October 2026.

Frequently asked questions

Is it safe to generate a password online?

This generator runs entirely in your browser using the Web Crypto random number generator. The password is never sent over the internet or stored anywhere, so only you see it.

How long should my password be?

Longer is stronger. Many security guides, including NIST guidance, favor length over complicated rules. A random password of 16 or more characters is a strong choice for important accounts, especially if you store it in a password manager.

What does the strength rating mean?

It is based on entropy, a measure of how many guesses an attacker would need. Each extra character or character type multiplies the possibilities. Around 80 bits or more is considered very strong for a randomly generated password.

Why avoid look-alike characters?

Characters like O and 0, or l, I and 1, are easy to confuse when you read or type a password. Removing them makes passwords easier to copy by hand with only a small loss of strength.

Should I reuse a strong password?

No. Use a different password for every account, so a leak at one site does not unlock the others. A password manager makes this practical, and turning on two-factor authentication adds another layer of protection.