ROT13 Encoder/Decoder

Encode or decode text using the ROT13 substitution cipher.

About This Tool

The ROT13 Encoder/Decoder applies the ROT13 cipher to encode and decode text. It's perfect for anyone looking to obfuscate messages temporarily.

Enter your text into the tool, and it will output the encoded or decoded version based on the input provided. The process is simple: each letter shifts 13 places in the alphabet.

Use this browser-based utility to encode messages without needing an account or sending data elsewhere. All operations occur locally within your web browser.

Frequently Asked Questions