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Password Generator

Generate strong random passwords up to 128 characters with the browser's cryptographic RNG. Entropy shown live.

Runs in your browser
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About the Password Generator

Weak and reused passwords are the main cause of account takeovers. This generator creates truly random passwords with crypto.getRandomValues(), guarantees at least one character from each selected set, and shows the entropy in bits so you know how strong the result is.

Passwords are generated on your device and never transmitted or stored.

How to use it

  1. Set the length (16+ recommended).
  2. Choose character sets and exclusions.
  3. Copy the password into your password manager.

Good to know

  • Use a unique password for every site and store them in a password manager.
  • Excluding look-alike characters slightly reduces entropy but helps when typing passwords manually.

Frequently asked questions

How long should a password be?

At least 12–16 characters with mixed sets, which gives 80+ bits of entropy.

Is this better than a passphrase?

Both are strong if long enough. Passphrases are easier to remember and type.

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