Password Generator

Why Use a Password Generator?

Weak passwords are the most common cause of account compromise. Many people reuse the same password across multiple services or use simple, memorable patterns that are easy for attackers to guess. A password generator creates truly random passwords that are resistant to dictionary attacks, brute force attempts, and common guessing strategies.

A strong password should be at least 12 characters long and include a mix of uppercase letters, lowercase letters, numbers, and symbols. The more character types and longer the password, the more combinations an attacker would need to try. A 16-character password with all four character types has over 10^30 possible combinations, making brute force impractical even with powerful hardware.

How to Use This Tool

Adjust the password length using the slider, then select which character types to include. Click Generate Password to create a new random password. The password appears in the output area and can be copied with the Copy button. The strength indicator gives you immediate feedback on the quality of your generated password based on its length and character diversity.

For most purposes, a 16-character password with uppercase, lowercase, and numbers provides excellent security. Adding symbols increases entropy further, though some websites restrict which symbols are allowed in passwords. If you encounter such restrictions, simply uncheck the Symbols option.

Password Security Best Practices

• Use a unique password for every account so that a breach of one service does not compromise others.
• Aim for a minimum of 12 characters. Longer passwords provide exponentially more security.
• Include uppercase, lowercase, numbers, and symbols when allowed.
• Use a password manager to store and autofill your passwords. This allows you to use strong, unique passwords without needing to memorize them.
• Enable two-factor authentication (2FA) wherever it is available for an additional layer of security.
• Change passwords immediately if you suspect an account may have been compromised.

How Random Are These Passwords?

This tool uses the browser's built-in crypto.getRandomValues() function, which is a cryptographically secure random number generator. This is the same source of randomness used by browsers for security-critical operations like TLS key generation. The passwords produced are truly random and unpredictable, unlike the pseudo-random numbers generated by Math.random().