Password Generator

What Makes a Password Secure?

A secure password is one that is difficult for both humans and computers to guess. The strength of a password depends on three main factors: length, complexity, and randomness. Our password generator maximizes all three to create passwords that would take centuries to crack with current technology.

The most common password attacks involve trying dictionary words, common substitutions (like "p@ssw0rd"), and patterns. Truly random passwords—like the ones generated here—are immune to these attacks because there's no pattern to exploit.

Why Generate Passwords Client-Side?

Many password generators send requests to their servers to generate passwords. This is a critical security flaw—your new password could be logged, intercepted, or stored by the service provider.

Utiliti's Password Generator runs entirely in your browser using the Web Crypto API, which provides cryptographically secure random number generation. Your passwords are:

• Never transmitted: Generated locally, your passwords never touch our servers
• Truly random: We use crypto.getRandomValues(), the gold standard for secure randomness in browsers
• Instantly available: No network requests means instant generation, even offline

How to Use This Generator

1. Set the length: Use the slider to choose between 10-255 characters. Longer is generally better—we recommend at least 16 characters for important accounts.
2. Choose character types: Select which character sets to include. More variety means stronger passwords.
3. Generate multiple: Need passwords for several accounts? Set the quantity and generate them all at once.
4. Copy and use: Click the copy button to grab your password(s) and store them in your password manager.

Password Strength Recommendations

Different accounts warrant different password strengths. Here are our recommendations:

• Critical accounts (banking, email): 20+ characters with all character types enabled
• Important accounts (social media, shopping): 16+ characters with uppercase, lowercase, and numbers
• Low-risk accounts: 12+ characters minimum
• Wi-Fi passwords: 20+ characters (you only enter it once per device)

Why You Should Use a Password Manager

Random passwords are only useful if you can remember them—and you shouldn't try. Instead, use a password manager like Bitwarden, 1Password, or KeePass to store your generated passwords securely. This allows you to:

• Use unique passwords for every account
• Generate and store complex passwords without memorization
• Autofill credentials securely across devices
• Detect if any of your passwords have been compromised in data breaches

The Math Behind Password Security

Password strength is measured in bits of entropy. A password with 20 characters using all character types (uppercase, lowercase, digits, and special characters—roughly 95 possible characters) has about 131 bits of entropy. At current computing speeds, cracking such a password through brute force would take longer than the age of the universe.