Text to ROT13 Converter

Encode text to ROT13 or decode ROT13 back to text. The same step works both ways.

What you can do here

How ROT13 works

ROT13 replaces each letter with the one 13 places later in the alphabet, wrapping around: A becomes N, N becomes A. Because the alphabet has 26 letters, applying ROT13 twice gives the original text, so the same operation encodes and decodes. Hello becomes Uryyb.

Common questions

How do I decode ROT13 to text?

Paste the ROT13 text and run it. The same shift of 13 turns it back into the original.

Is ROT13 encryption?

No. It is a trivial substitution anyone can reverse. Use it to hide spoilers, not to protect secrets; for that see the text encryption tool.

What happens to numbers and accented letters?

They are left unchanged. Only A–Z and a–z are rotated.