ROT13 Cipher
A simple letter substitution cipher that replaces a letter with the 13th letter after it.
About This Tool
ROT13 is a common way to hide spoilers or obfuscate text in online forums.
Key Features
Encode and decode ROT13 instantly
Simple letter substitution
Reversible cipher
One-click copy
No server calls
How to Use This Tool
- Enter your text.
- The ROT13 version is generated live.
- Copy the result.
Why Use This Tool
- Obfuscating spoilers.
- Basic encryption puzzles.
- CS history.
Pro Tips
- Use for obfuscating spoilers
- Basic encryption puzzles
- CS history education
- Not for security purposes
Frequently Asked Questions
Is ROT13 secure?
No, it's easily reversible and not for security.