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Password Generator

Generate strong random passwords using your browser's cryptographic random source.

To generate a strong password, set the length and character sets above and press generate. Passwords use crypto.getRandomValues, the browser's cryptographically secure random source, and are created entirely on your device — never sent to or stored on a server.

Runs in your browser
Privacy
Runs entirely in your browser — nothing is uploaded
Cost
Free, unlimited, no sign-up

Frequently asked questions

Are these passwords really random?

Yes. They use crypto.getRandomValues, which draws from the operating system's cryptographic entropy pool — not Math.random, which is predictable and unsuitable for secrets.

How long should a password be?

Aim for at least 16 characters with mixed types, giving roughly 100 bits of entropy. Length matters far more than complexity: a longer simple password beats a short convoluted one.

How to use the password generator

  1. 1Choose the style.
  2. 2Enter or paste your pattern.
  3. 3Set the length.
  4. 4Set the how many.
  5. 5Turn "Exclude look-alikes (0 O l I)" on or off as needed.
  6. 6Turn "Uppercase A-Z" on or off as needed.
  7. 7Turn "Lowercase a-z" on or off as needed.
  8. 8Turn "Numbers 0-9" on or off as needed.
  9. 9Turn "Symbols !@#$" on or off as needed.
  10. 10The result appears immediately — copy or download it.

Embed this tool

Put the working password generator on your own site. It runs in your visitors' browsers exactly as it does here — free, no account, nothing uploaded.

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