Our free online tool lets you easily shift letters to create or reveal hidden messages. Simply enter your text and choose the shift value to encrypt or decrypt your message. The Caesar Cipher is one of the simplest and most widely known encryption techniques.
Q: What is a Caesar Cipher?
A: The Caesar Cipher is a type of substitution cipher where each letter in the plaintext is shifted by a certain number of places down or up the alphabet.
Q: How do I use this tool?
A: Enter your text in the input box, specify the shift value, and click "Encrypt" or "Decrypt" to transform your text. You can then copy the result to your clipboard.
Q: Is this tool free?
A: Yes, this tool is completely free to use.