When I was younger this was this thing called a secret decoder ring. If you looked at certain messages through the ring's crystal it would reveal a secret message. Secret Code Me works much in the same way. You type up a message you want to keep private and run it through the decoder. It will return an encrypted message. You send that message to your friend and they come back here to decrypt it. As long as nobody knows you are using the secret code me site, they will never know what your message really says.