Password Strength Checker
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.
사용 방법
- 모든 것은 브라우저에서 로컬로 실행됩니다. 데이터가 업로드되지 않으며 계정이 필요 없습니다.
소개
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.
모든 것은 브라우저에서 로컬로 실행됩니다. 데이터가 업로드되지 않으며 계정이 필요 없습니다.
Embed this tool
Customize and copy an iframe. Linking back helps both sites.