Password Strength Checker

Vault-grade check · 100% offline

Password Strength Checker

Type a password below. Everything happens on your device — nothing is sent anywhere.
Estimated entropy
Character sets used
Attack scenarioEstimated time to crack
Online, throttled login (10/min)
Online, unthrottled (100/sec)
Offline, slow hash (10k/sec)
Offline, GPU fast hash (10B/sec)
Nothing leaves your browser. This page makes no network requests with your password — it isn’t transmitted, logged, or stored, not even to us.
Crack-time estimates are rough approximations for illustration, not a security guarantee.