Random Password Generator

Generate strong, cryptographically secure random passwords online. Customize length, character sets, and more.

Password Secret KeyVery Strong · 129 bits
Click generate

What is a Secure Password?

A secure password is a randomly generated string of characters that is difficult for both humans and computers to guess. Strong passwords are the first line of defense against unauthorized access to your accounts and personal data.

Our random password generator uses the Web Crypto API's crypto.getRandomValues() function to generate cryptographically secure random values, ensuring true randomness that cannot be predicted.

What Makes a Password Strong?

Length: Use at least 16 characters. Longer passwords are exponentially harder to crack.
Complexity: Include a mix of uppercase letters, lowercase letters, numbers, and symbols.
Randomness: Avoid patterns, dictionary words, or personal information. Use a true random generator.
Uniqueness: Use a different password for every account. Never reuse passwords.

How to Use the Password Generator

  1. Generate a password: A secure 20-character password is generated automatically when you load this page.
  2. Customize (optional): Click "Advanced Settings" to adjust the password length, enable/disable character sets (lowercase, uppercase, numbers, symbols), or add custom characters.
  3. Copy the password: Click the copy button to copy your new password to your clipboard.
  4. Store securely: Use a password manager to store your passwords securely.

Password Security Best Practices

  • Use a password manager: Tools like 1Password, Bitwarden, or KeePass help you generate and store unique passwords for every account.
  • Enable two-factor authentication (2FA): Add an extra layer of security beyond just your password.
  • Never share your passwords: Keep your passwords private. Legitimate services will never ask for your password.
  • Check for breaches: Use services like Have I Been Pwned to check if your accounts have been compromised.
  • Update passwords regularly: Change passwords for sensitive accounts periodically, especially after a potential breach.

Password Strength Explained

Password strength is measured in bits of entropy. The higher the entropy, the harder the password is to crack. Our generator shows you the entropy of your password in real-time:

Weak

< 40 bits - Easily cracked

Fair

40-60 bits - Basic protection

Good

60-80 bits - Decent security

Strong

80+ bits - Highly secure

Why Use Our Random Password Generator?

  • 100% Client-Side: Your passwords are generated entirely in your browser. No data is ever sent to any server.
  • Cryptographically Secure: We use the Web Crypto API for true randomness, not pseudo-random number generators.
  • Fully Customizable: Adjust length, character sets, include custom characters, or exclude ambiguous characters like 0, O, l, and I.
  • Open Source: Our code is open source on GitHub. Audit it yourself or contribute to make it better.
  • Free Forever: No ads, no accounts, no subscriptions. Just a simple, secure password generator.

Need Secret Keys for Your Framework?

Check out our Secret Key Generator for framework-specific keys for Django, FastAPI, JWT, Flask, Laravel, Rails, NextAuth, and more.

Security

Passwords generated 100% client-side

No data sent to any server

Uses Web Crypto API

Open source - audit the code

All Generators

View all secret key generators

Using crypto.getRandomValues()