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Password Generator & Checker

Generate strong passwords and check password strength instantly. Cryptographically secure.

✓ 100% Free ✓ No Sign-up ✓ Privacy-First
8-128
Strength: Enter a password
Entropy: -- bits

Password Security Tips

  • Use at least 12 characters for better security
  • Mix uppercase, lowercase, numbers, and special characters
  • Avoid personal info (names, birthdates)
  • Use unique passwords for each account
  • Consider a password manager

Frequently Asked Questions

Entropy measures password randomness in bits. Higher entropy = harder to crack. 40+ bits is decent, 60+ is strong, 80+ is very strong.
12+ characters is recommended. Each additional character exponentially increases security. 16+ characters is ideal for important accounts.
Yes! We use crypto.getRandomValues() for cryptographically secure random generation. All processing happens in your browser - nothing is sent to any server.