What is the Password Generator and what does it do?
The Password Generator is a critical security utility that uses randomized algorithms to create complex strings of characters designed to protect your online accounts. As cyber-attacks and brute-force attempts become more sophisticated, simple passwords like "password123" or "qwerty" are no longer sufficient to keep your data safe.
Our tool generates high-entropy passwords that include a mix of uppercase and lowercase letters, numbers, and special symbols. These random strings are nearly impossible for humans to guess or for machines to crack within a reasonable timeframe. By using a unique, strong password for every service you use, you significantly reduce the risk of becoming a victim of data breaches and identity theft.
How to use the Password Generator
Creating a secure password is fast and customizable. Just follow these steps:
- Choose Length: Use the slider to select the number of characters. We recommend a minimum of 12 for standard accounts and 16+ for sensitive data.
- Toggle Settings: Enable or disable specific character sets such as uppercase letters, numbers, and special symbols (!@#$%^&*).
- Exclude Similar Characters: Some users prefer to avoid characters like 'i', 'l', '1', 'o', and '0' because they can be easily confused.
- Generate: Click the "Generate" button to see your new password.
- Copy: Use the copy button to safely move the password to your clipboard and then into your password manager.
Formula / method
Security is paramount, which is why we do not use simple pseudo-random generators. Instead, our tool relies on the following methods:
- Web Crypto API: We use the
window.crypto.getRandomValues()method, which provides cryptographically strong random numbers generated by your operating system. - Entropy Calculation: The strength of your password is measured in "bits of entropy." The more character types you include and the longer the string, the higher the entropy.
- Character Pool Shuffle: Our algorithm builds a "pool" based on your settings and then picks characters at random using a Fisher-Yates shuffle variant for maximum unpredictability.
Worked example
Let's see how changing settings affects the security of your password.
- Setup A (Low Security): Length: 6, Numbers only. Result:
829105. (Easily cracked in seconds). - Setup B (Medium Security): Length: 8, Letters + Numbers. Result:
aB3k9Pz2. (Better, but still vulnerable to modern hardware). - Setup C (High Security): Length: 14, Letters + Numbers + Symbols. Result:
f$9v#K2!pQ&1mZ. (Extremely secure; would take centuries to brute-force).
Practical tips
- Use a Password Manager: Don't try to remember these complex passwords. Use a reputable password manager (like Bitwarden, 1Password, or KeePass) to store them securely.
- Unique Passwords Only: Never reuse the same password for multiple websites. If one site is breached, all your other accounts remain safe.
- Enable 2FA: Even a strong password should be backed up by Two-Factor Authentication (2FA) for your most important accounts (email, banking, social media).
- Check Strength: Use our Password Strength Checker to evaluate your existing passwords.
Frequently asked questions
Are these passwords stored on your server? No. The generation happens entirely on your device. We have no way of knowing or seeing the passwords you create.
Should I change my passwords regularly? Security experts now suggest only changing passwords if you suspect a breach. Using a very strong, unique password is more important than frequent changes.
Is it safe to use special symbols? Yes, most modern websites support symbols. They add a significant layer of complexity that makes brute-forcing much harder.