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Caesar Cipher

Caesar cipher encoder/decoder with custom shift. Classic substitution cipher with brute-force all shifts.

View all offset results (brute force)

Instructions

사용 방법

  • 평문 또는 암호문을 입력합니다

  • 이동 수(1-25)를 설정합니다

  • 암호화/복호화를 클릭합니다

  • 모든 이동 결과를 원클릭으로 확인합니다

    • ❓ FAQ

    Can the shift be customized?

    Yes, any shift from 1 to 25 is supported.

    How do I crack it?

    Click \"All shifts\" to view all 25 results and identify the plaintext manually.

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    📝 Related Articles

    tool-tutorials

    How to Use Online Caesar Cipher Decryption: Restore Encrypted Text in Three Steps

    Only three steps are needed to restore Caesar ciphertext: paste the text, iterate through shifts from 1 to 25, and select the result by readability. The article also clearly explains shift determination, result verification, the difference from the Vigenère cipher, and how to handle mobile and large-file scenarios. After reading, you can independently complete decryption and troubleshoot common errors.

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