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Encode and decode text using ROT13 Caesar cipher. Supports custom shift values from 1 to 25.
About Caesar Cipher / ROT13
ROT13 is a special case of the Caesar cipher with a shift of 13. Since the English alphabet has 26 letters, applying ROT13 twice returns the original text. Only letters are shifted; numbers, spaces, and symbols remain unchanged.
Encode and decode text using ROT13 Caesar cipher. Supports custom shift values from 1 to 25.
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