Проверка надежности пароля
Бесплатная проверка надежности пароля. Оцените энтропию и надежность локально — данные никогда не отправляются по сети — с действенными советами по улучшению вашего пароля.
Runs in your browserUpdated Apr 26, 2026
Input
Output
StrengthEmpty
Length0
Entropy0 bits
- • Type a password to check.
Часто задаваемые вопросы
›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.