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ROT13 Encoder
Apply ROT13 substitution cipher — the same operation encodes and decodes.
About ROT13 Encoder
ROT13 Encoder applies the ROT13 substitution cipher, rotating each letter by 13 positions in the alphabet. Because the cipher is its own inverse, the same tool both encodes and decodes. It's commonly used to obscure spoilers, answers, and puzzle solutions online.
- Encodes and decodes in one step
- Preserves spaces and punctuation
- Non-alphabetic characters unchanged
- Instant output