Caesar Cipher Converter

Enter or paste the text, choose whether to encode or decode the text and the number of postions to shift the alphabet and click the ‘Convert’ button to get the text converted by the Caesar cipher.




The Caesar cipher is a substitution cipher used by the Roman leader Julius Caesar to encrypt military messages. In this cipher each letter is shifted by a fixed number of positions in the alphabet. In order to get the original message each letter should be shifted the same number backward.