Free Online Password Strength Tester & Entropy Calculator
Evaluate your password's security with real-time feedback, entropy analysis, and estimated crack times using industry-standard algorithms.
Security Score
Very Weak
Entropy
0 Bits
Offline Crack Time
Instant
Online Crack Time
Instant
Security Level
Critical
Suggestions for Improvement
Secure Password Generator
Generated passwords are processed locally and never stored.
100% Client-Side
Analysis happens entirely in your browser. No data ever leaves your device.
Zero Tracking
We don't use cookies or storage. Your activity is private and ephemeral.
Secure Defaults
Our generator uses cryptographically strong random number generation.