Generate secure random passwords and see brute-force crack time. Adjust length and character types.
416 characters64
Your Password
Strength
Crack Time (10B/sec)
-
Entropy
- bits
Security Note
Passwords generated client-side using crypto.getRandomValues(). Nothing transmitted.
Password Strength Guide
| Length | Crack Time | Rating |
|---|---|---|
| 8 chars | ~2 hrs | Weak |
| 12 chars | ~34 years | Fair |
| 16 chars | ~292M years | Strong |
| 20 chars | ~23 decillion years | Very Strong |
| 24+ chars | Beyond universe age | Unbreakable |
FAQ
How long should a password be?
At least 12 characters with mixed types. 16+ is ideal.
What makes it strong?
Length, randomness, variety of character types.
Is this safe?
Yes. In-browser using crypto.getRandomValues().
How fast can hackers crack?
10-100 billion guesses/sec with modern GPUs.
Use password manager?
Yes. Unique passwords per account.