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ROT13 / Caesar Cipher

v1.0.1

Encode and decode text with ROT13, ROT47, Caesar shift, and Atbash ciphers.

Encodes and decodes text with ROT13, ROT47, Caesar shift (any 1–25 offset), and Atbash ciphers in a single tool. ROT13 is its own inverse — encode and decode are the same operation.

How to use
  • →Select the cipher variant and paste your text — the output updates instantly.
  • →ROT13 is commonly used on forums to hide spoilers; ROT47 also rotates digits and symbols.
  • →For Caesar, drag the shift slider or type any value from 1 to 25.

Uryyb Jbeyq

ROT13 is self-inverse — apply again to decode.