Handitab

Password Generator

Generate strong random passwords of 6 to 64 characters in your browser, with a choice of letters, digits, and symbols and an entropy estimate.

About Password Generator

A password generator creates random strings that are hard to guess. This one draws every character from the browser's cryptographic random source (crypto.getRandomValues) with rejection sampling to avoid bias, guarantees at least one character from each selected set, then shuffles the result. Length ranges from 6 to 64 characters, with up to 200 passwords per run. Passwords are created on your device and are not sent anywhere.

Also known as: Random Password Generator, Strong Password Generator, Strong Random Password Generator, Secure Password Generator.

How to use Password Generator

  1. Fill in "Length", "Number of passwords", "Uppercase A-Z" and "Lowercase a-z", and the other options.
  2. The result appears below. Press "Generate again" for a new one.
  3. Copy the result with the copy button, or download it as a file where that is offered.

Questions about Password Generator

How long should a password be?

For a random password using letters, digits, and symbols, 16 characters gives roughly 100 bits of entropy, far beyond practical brute force. Use at least 12, and a unique password for every account, stored in a password manager.

What does bits of entropy mean?

It measures how many guesses an attacker needs. Each extra bit doubles the number of possible passwords, so 80 bits means about 2 to the power of 80 combinations. The tool computes it as length times the base-2 logarithm of the character set size.

Runs in your browser. Page last updated .

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