Paste-first
Crypto
ready
Password Strength Analyzer
Estimate password strength locally with entropy and safety warnings.
Algorithm
Local entropy estimate
Data
Secret stays in this browser
Output
Analysis only
Sensitive
What Password Strength Analyzer does
local-first
Password Strength Analyzer estimates password quality locally using character classes, approximate entropy, crack-time guidance, and warnings for short, repeated, or common-pattern passwords. It helps review credentials without transmitting them anywhere.