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비밀번호 강도 확인기

무료 비밀번호 강도 확인기. 엔트로피와 강도를 로컬에서 추정합니다. 네트워크를 통해 전송되지 않으며, 비밀번호를 개선하기 위한 실행 가능한 팁을 제공합니다.

Runs in your browser
Input
Tested on your device. Nothing is sent or saved.
Need a strong one? Generate a new password
Output
StrengthEmpty
0 characters0 bits

Type a password above to see what it has and what it's missing.

편집자 노트

Understanding · Entropy beats cleverness.

이 심층 챕터는 현재 영어로만 제공됩니다. 위의 변환 도구는 귀하의 언어로 작동하지만, 긴 설명 글은 아직 번역되지 않았습니다.

자주 묻는 질문

Quick answers.

Is my password sent anywhere?

No — strength estimation runs entirely in your browser. Nothing is logged.

What does entropy mean?

Bits of randomness — roughly, how many guesses an attacker would need. 50 bits is okay; 80+ is strong; 128+ is excellent.

Why does 'P@ssw0rd!' get a low score?

Common substitutions (a→@, o→0) are the first thing password crackers try. The pattern 'capital + word + symbol + digit' adds very little real strength.

Is a long passphrase better than a short complex one?

Usually yes. 'correct horse battery staple' is much stronger than 'P@ssw0rd!' — length wins over complexity.

Is the checker free?

Yes — fully free, no signup.

사람들이 다음도 검색합니다.

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