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This page provides a codebreaker for messages encrypted with a Caesar Cipher.

AKA: Caesar's cipher, the shift cipher, Caesar's code, Caesar shift, ROT13 (shift of 13)

Type: Substitution cipher

Description: Each letter in the message is replaced by a letter some fixed number of positions down the alphabet.

Caesar Cipher Codebreaker

Encrypted Text

Shift Key
Do you know the number of positions that the text should be shifted?

No, try all possible keys

Yes, shift text by

(Enter number)

White Spaces
Ignore white space in encrypted message or maintain spacing?

Ignore white space

Maintain spacing

Message

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