Rot13 / Caesar Cipher Encoder

Apply ROT13 or custom Caesar cipher shifts to your text. ROT13 is a simple letter substitution cipher that rotates letters by 13 positions. Supports custom shift values for different cipher strengths.

Input

Output

Examples

ROT13

Input:

Hello World

Output:

Uryyb Jbeyq

Caesar shift 3

Input:

Hello

Output:

Khoor

How to Use Rot13 / Caesar Cipher Encoder

1Enter your text
2Choose the shift value (default 13)
3Click Encode or Decode

Frequently Asked Questions

Is ROT13 secure?

No, ROT13 is a very weak cipher used for obfuscation, not real security.

What is the difference between ROT13 and Caesar cipher?

ROT13 is a specific Caesar cipher with a shift of 13. ROT13 is its own inverse (applying it twice returns the original text).