About this tool
Generate strong, cryptographically-random passwords using the Web Crypto API. Control length and character sets, exclude look-alike characters, and watch a live entropy estimate rate the strength. Nothing is stored or sent.
Frequently asked questions
Are these passwords really random?
Yes. They use crypto.getRandomValues, a cryptographically secure random source — not Math.random.
What is entropy in bits?
It measures how hard a password is to guess. More bits is stronger; aim for 80+ bits for important accounts.