ROT13 (rotate by 13 places) replaces a letter with the letter 13 letters after it in the alphabet. It has been described as the "Usenet equivalent printing an answer to a quiz upside down" as it provides virtually no cryptographic security.

Tool to decrypt/encrypt with rot13. ROT-13 cipher is a particular case of the Caesar cipher, where the shift is equal to 13, this allow the cipher to be reciprocal.

Instantly encode and decode text with this powerful cipher tool. Built-in ROT13 (letter encryption), ROT5 (number encryption), and ROT18 (combined encryption) for versatile text encoding. Customize letter shifts (1-25) and number shifts (1-9) for specific encryption requirements.

ROT13 decoder online allows you to change secret messages and codes written using the ROT13 cipher to normal readable text. ROT13 is a special coding system that replaces and changes the letters in a message so that it doesn’t make sense at a cursory glance.

Use our free ROT13 encoder/decoder to easily encrypt and decrypt ROT13 encoded messages. Simple, fast, and efficient - perfect for puzzle solving and basic cryptography.

Quickly encode or decode text using the Free ROT13 Encoder/Decoder Online. It supports ROT1 to ROT25, which is ideal for enhancing secure communications and exploring cryptographic concepts.

Our ROT13 tool is a simple yet effective way to encode and decode text using the ROT13 substitution cipher. Perfect for basic text obfuscation and puzzle creation. Key features of our ROT13 Encoder/Decoder include: Real-time encoding and decoding; Case preservation option; Whitespace handling; Copy to clipboard functionality; Download encoded ...