Password Strength Vérificateur
Entropy, crack-time estimate and plain-English advice.
Everything is computed in your browser — the password never leaves this page. Estimates assume an attacker at 1011 guesses/second (modern hardware), which is why a long passphrase often beats a short “complex” password.
Comment utiliser
- Tout s’exécute localement dans votre navigateur : aucune donnée n’est envoyée, aucun compte requis.
À propos
Estimates entropy in bits from character classes and uniqueness, flags common dictionary patterns, and translates the result into an offline crack-time estimate at roughly a hundred billion guesses per second.
The headline finding matches most security guidance: length beats symbol-spice. A 16-character passphrase usually beats an 8-character password with everything in it.
Tout s’exécute localement dans votre navigateur : aucune donnée n’est envoyée, aucun compte requis.
Embed this tool
Customize and copy an iframe. Linking back helps both sites.