Compute cryptographically randomized alphanumeric parameter access keys online free. Generate highly secure passwords to protect your privacy.
Dudi Secure Password Generator is a powerful, 100% free online tool to create cryptographically strong passwords instantly. Using the browser's built-in Web Crypto API (crypto.getRandomValues), every password is generated with true randomness — the same standard trusted by banks and security software.
Unlike other password generators, nothing is ever uploaded, logged, or tracked. Your passwords are generated locally in your browser and never leave your device.
Our tool uses crypto.getRandomValues() from the Web Crypto API — a cryptographically secure pseudo-random number generator (CSPRNG) built into your browser. This is the same standard used by banks, security software, and encryption libraries. Passwords generated here are truly random and cannot be predicted.
Password strength depends on two factors: length and character diversity. Longer passwords with mixed uppercase, lowercase, digits, and symbols have exponentially more combinations. Our entropy meter shows how many bits of entropy your password has — 60+ is good, 90+ is excellent, 128+ is virtually uncrackable.
Some fonts make certain characters hard to distinguish: 0 (zero) vs O (uppercase o), and 1 (one) vs l (lowercase L) vs I (uppercase i). Enabling this option removes these characters so your password is easier to type manually without confusion.
Recommended minimums: 12+ characters for personal accounts, 16+ characters for email and banking, 20+ characters for admin/root access, and 32+ characters for encryption keys or master passwords. Longer is always stronger.
Absolutely not. Nothing is logged, stored, or transmitted. All generation happens locally in your browser using JavaScript. There's no server, no database, no analytics on your password. This is why Dudi's generator is trusted by privacy-conscious users.
Never! Always use a unique password for every account. If one site is compromised, your other accounts remain safe. Use a password manager (Bitwarden, 1Password, KeePass) to store them securely. Our generator is perfect for creating those unique passwords.
Yes, 100% free with no hidden charges, no subscription, no signup, no watermarks, and unlimited generation. Create as many passwords as you need, anytime.
Yes! Once the page loads, you can generate passwords even without internet — everything runs locally in your browser. This is perfect for air-gapped or high-security environments.