🔐 Password Generator

Generate strong, secure random passwords with customizable length and character sets. Check password strength instantly.

Generate a Password

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Password Strength Checker

What Makes a Password Strong?

  • Length: The single most important factor. Each extra character multiplies possible combinations. 16+ characters is recommended.
  • Character variety: Mix uppercase, lowercase, numbers, and symbols. 95 printable ASCII characters × 16 positions = 95¹⁶ ≈ 4.4 × 10³¹ combinations.
  • Randomness: Avoid patterns, dictionary words, or personal information. This generator uses crypto.getRandomValues() for cryptographically secure randomness.
  • Uniqueness: Use a different password for every account. A password manager makes this practical.

Password vs Passphrase

A passphrase (several random words: "correct-horse-battery-staple") can be both strong and memorable. Four random common words has ~50 bits of entropy — comparable to a 9-character fully random password, but much easier to remember.

Is this password generator safe to use? +
Yes. This generator runs entirely in your browser using the Web Crypto API (crypto.getRandomValues()), which is cryptographically secure. No passwords are transmitted to any server or stored anywhere. You can even run this page offline once loaded.
Should I use a password manager? +
Absolutely. Password managers (Bitwarden, 1Password, Dashlane, etc.) let you use a unique, strong random password for every site without memorizing them. You only need to remember one strong master password. This dramatically reduces your risk from data breaches — if one site is compromised, your other accounts are safe.