Security Utilities & Calculators
Audit password security, calculate information entropy in bits, and estimate brute-force crack times. Every tool runs 100% client-side inside your browser tab with zero network transmission.
Password Strength Checker
Test password security instantly with real-time cryptographic entropy, dictionary pattern detection, and brute-force crack time estimates. 100% private.
Password Entropy Calculator
Calculate password entropy in bits (log2(R^L)), estimate GPU brute-force crack times, check character set pools, and view the entropy chart 100% locally.
Zero-Server Network Guarantee
None of our security utilities ever transmit, store, or log passwords. All entropy calculations and dictionary pattern analyses take place locally within JavaScript in your web browser tab.