What is a password generator?
A password generator is a tool that creates random, hard-to-guess passwords on demand. Unlike passwords you choose yourself — which are often based on familiar words or patterns — machine-generated passwords are unpredictable and far more resistant to brute-force and dictionary attacks.
Why use a strong password?
Weak or reused passwords are one of the most common causes of account compromise. A strong password should be long (at least 12–16 characters), include a mix of uppercase, lowercase, numbers, and symbols, and be unique for every account. Using a password manager alongside a generator makes this effortless.
How does this tool work?
This generator uses crypto.getRandomValues() — the browser's built-in cryptographically secure random number generator — to produce each character. Characters are shuffled with a Fisher-Yates algorithm to ensure no positional bias. Everything happens locally in your browser; no data is sent to any server.
Tips for better password security
Use a minimum length of 16 characters for important accounts. Enable both numbers and symbols for the strongest results. Store generated passwords in a reputable password manager (like Bitwarden, 1Password, or KeePass) so you never need to remember them yourself.