Password Generator Online

Reusing the same password across multiple websites is the primary cause of account takeovers. A secure password should be long, entirely random, and unique to every service you use. This tool generates cryptographically secure passwords directly in your browser.

How it works

The generator uses the Web Crypto API (window.crypto.getRandomValues()) rather than standard Math.random() to ensure true cryptographic randomness. It builds a character pool based on your selected options (uppercase, lowercase, numbers, symbols) and securely selects characters to construct the string.

How to use it

1. Adjust the slider to set the password length (12-16 characters is recommended)
2. Toggle the character types you want to include (Uppercase, Numbers, Symbols)
3. The password updates instantly as you change settings
4. Click the generated password or the copy icon to copy it to your clipboard

A few things worth knowing

• True Randomness: Standard JavaScript Math.random() is predictable and not safe for generating passwords. This tool relies exclusively on the browser's cryptographically secure random number generator
• 100% Client-Side: The password is created entirely on your local device. It is never transmitted across the network, saved in a database, or logged to a server
• Length beats complexity: A 16-character password made entirely of lowercase letters is significantly harder for a computer to crack than an 8-character password packed with complex symbols

FAQ

Should I memorize this password? No. Secure passwords are intentionally difficult to memorize. You should use a dedicated Password Manager (like Bitwarden, 1Password, or your browser's built-in manager) to save and auto-fill these generated passwords.

Can I recover a password if I close the page before saving it? No. Because the passwords are generated locally and never saved, once you refresh or close the page, the generated string is permanently gone.

Related Tools

• Password Strength Checker
• Bcrypt Generator