Rot13 conversion on text.
Note: paste output back into input and get your text decoded.
Description from Wikipedia:
ROT13 ("rotate by 13 places", sometimes hyphenated ROT-13) is a simple Caesar cipher used in online forums as a means of hiding spoilers, punchlines, puzzle solutions, and offensive materials from the casual glance. ROT13 has been described as the "Usenet equivalent of a magazine printing the answer to a quiz upside down".
ROT13 provides no real cryptographic security and is not used for such; in fact it is often used as the canonical example of weak encryption. An additional feature of the cipher is that it is symmetrical; that is, to undo ROT13, the same algorithm is applied, so the same action can be used for encoding and decoding.