Password Generator

Weak or reused passwords are the leading cause of account breaches. Attackers use automated tools that can test billions of password combinations per second. A randomly generated password with a mix of uppercase letters, lowercase letters, numbers, and symbols is exponentially harder to crack. For example, a 16-character password with all character types has over 80 bits of entropy, which would take millions of years to brute-force with current technology. Using a unique password for every account ensures that a breach on one service does not compromise your other accounts.

This tool uses the Web Crypto API (crypto.getRandomValues) built into your browser, which provides cryptographically secure random numbers. Unlike Math.random(), which is predictable and unsuitable for security purposes, the Web Crypto API draws from your operating system's entropy source. You can customize the password length from 4 to 64 characters and toggle which character sets to include. The strength meter calculates entropy based on the character pool size and password length, giving you a clear picture of how secure your password is.

Generate passwords that are at least 16 characters long for important accounts like email, banking, and cloud services. Use a password manager to store your generated passwords securely so you do not need to memorize them. Enable two-factor authentication wherever possible for an additional layer of security. Avoid using personal information like birthdays or names, and never share passwords through unencrypted channels like email or text messages. Regularly update passwords for sensitive accounts, especially after a known data breach.