Security Tool v2.0

Password Strength
Analyzer

Local analysis + breach detection. Raw passwords never leave your browser.

LIVE
awaiting
Character breakdown
Uppercase
Lowercase
Numbers
Symbols
Strength Indicator
12+ characters
Uppercase letters
Lowercase letters
Numbers
Symbols
No common patterns
Online attack (throttled)
Offline attack (GPU)
Entropy
All analysis runs locally in your browser. Breach check uses k-anonymity — only the first 5 hex chars of the SHA-1 hash are transmitted to Have I Been Pwned.