Strong Password Generator
Strong password generator: random secure passwords or PINs of any length, generated in your browser, with strength in bits.
Entropy = length × log₂(alphabet)
How to use this calculator
- Type your input in the box.
- The result updates as you type.
- Use “Copy result” or “Copy link” to share it.
Passwords use your browser’s cryptographic random generator; ambiguous characters (0/O, 1/l) are left out.
Aim for 16+ characters, and use a different password for every site with a password manager.
Frequently asked questions
How strong is a 16-character password with symbols?
About 98 bits of entropy: practically uncrackable by brute force.
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