ROT13 Cipher
Apply ROT13 to Latin letters while retaining other characters.
Processing stays in your browser. ROT13 is reversible obfuscation, not secure encryption. Applying it twice restores the original text.
How to use the rot13 cipher
Apply ROT13 to Latin letters while retaining other characters. Complete the text fields above, or upload a UTF-8 text file for the first field. Choose Run tool, review the output, then copy or download the result.
Example
Hello becomes Uryyb.
Good to know
ROT13 is reversible obfuscation, not secure encryption. Applying it twice restores the original text.