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

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.