ROT13 Encoder / Decoder
Apply ROT13 cipher to text. Each letter is shifted 13 positions in the alphabet. Applying twice returns the original.
Frequently Asked Questions
What is ROT13?
ROT13 is a simple letter substitution cipher that shifts each letter 13 places in the alphabet. It is its own inverse.
Is ROT13 secure?
No, ROT13 is not encryption. It is trivially reversible and only used for obscuring text like spoilers.