🚫 Security

Common Password Blacklist Check

Checks a password against the top 1000 most-used passwords, fully client-side, and flags it as compromised.

Senha a verificar

A senha nunca sai do seu navegador — checagem 100% client-side.

Resultado

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Related Tools

Generate strong, random passwords with custom length, uppercase letters, numbers and symbols. Generated in the browser — no data leaves your device.

Apply classic ciphers (Caesar, ROT13, Atbash) or Base64. Useful for puzzles, CTFs and testing — do not use for real security.

Check the strength of a password with entropy calculation, common-password check and improvement tips. Runs in your browser — no data is sent.