Password Entropy Calculator

Calculate password entropy bits and estimated cracking duration 100% in your local browser memory.

How to Use Password Entropy Calculator

  1. Enter password or passphrase.
  2. View Shannon entropy score (bits).
  3. Review character pool breakdown.

Why Choose Krynn Tools for Password Entropy Calculator?

  • 100% Private (0 network calls).
  • Calculates GPU brute-force speed.
  • Entropy bit rating.

Frequently Asked Questions

What is a safe entropy score?

80+ bits of entropy is considered highly secure against modern multi-GPU cracking setups.