Password Generator — Free Secure Random Password Generator Online

Strong passwords combine sufficient length, character diversity, and true randomness. This generator uses crypto.getRandomValues() — the browser's cryptographically secure random number generator — ensuring every character choice is unpredictable and unbiased. The generation runs entirely in your browser with zero network requests.

Password entropy measures strength in bits: how many guesses an attacker would need in the worst case. A 20-character password using all character types (lowercase + uppercase + digits + symbols) has approximately 130 bits of entropy — requiring 2^130 guesses to crack by brute force. No computer can crack this in any reasonable timeframe.

Use a password manager (Bitwarden, 1Password, Dashlane) to store generated passwords. Enable 2FA on important accounts. The biggest security risk isn't password strength — it's password reuse across sites. Generate unique passwords for every account.