🔐 Secure Password Generator

Generate strong, random passwords instantly. Customize length and character types.

Password Strength: Very Weak
Length: 12 characters

🔧 Customize Your Password

12
26 available
26 available
10 available
10 available

⚡ Quick Presets

🔐 Password Security Info

Entropy: 0 bits
Higher entropy means stronger passwords. Aim for at least 80 bits.

📚 Password Security Guide

🔒 Why Strong Passwords Matter

A strong password is your first line of defense against hackers. Weak passwords can be cracked in seconds.

⚡ Tips for Strong Passwords

  • Use at least 12 characters
  • Mix uppercase, lowercase, numbers, symbols
  • Avoid dictionary words
  • Don't reuse passwords

🛡️ Password Storage

Use a password manager like LastPass, 1Password, or Bitwarden to store your passwords securely.

⏱️ How Long to Crack?

Your current password would take seconds to crack

📊 How Password Strength is Calculated

Password strength is measured in entropy bits, which represents the unpredictability of your password:

0-40 bits: Very Weak
41-60 bits: Weak
61-80 bits: Good
81+ bits: Strong
// Entropy Calculation Formula:
entropy = length × log₂(character_set_size)

// Example: 12 characters from 72 possible
entropy = 12 × log₂(72) ≈ 74 bits

📝 Recently Generated Passwords

❓ Frequently Asked Questions

Q: Are the passwords stored or sent anywhere?

A: No! All password generation happens locally in your browser. No data is sent to any server.

Q: How long should my password be?

A: For most purposes, 12-16 characters is sufficient. For highly sensitive accounts, use 20+ characters.

Q: Should I include special characters?

A: Yes! Special characters greatly increase password strength and make it harder to crack.

Q: Can I use this for all my accounts?

A: Absolutely! Generate a unique password for every account. Consider using a password manager to remember them all.