Pseudonym Generator
Your Surname
Enter your surname and each letter will be swapped for the letter directly opposite it on the alphabet circle.
Your Pseudonym
Use this as a screen name, gamertag, or in-game name (IGN).
Letter-by-Letter Breakdown
Enter a surname to see how each letter maps to its opposite.
The Alphabet Circle
All 26 letters arranged evenly around a circle. Each letter's cipher partner sits exactly opposite it, 13 places around - the letters currently in your surname are highlighted below.
This method is known as ROT13, a modern variant of the ancient Caesar cipher used by Julius Caesar around the 1st century BC. ROT13 itself emerged on Usenet in the early 1980s as a way to hide punchlines, spoilers, and off-topic content. A similar opposite-letter technique was famously used in the 18th century by inventor Johann Bessler, who derived the pseudonym Orffyreus from his own surname.