ROT13 Decoder

JW-Cai

About this app

ROT13 Decoder is a modern and user-friendly tool for encoding and decoding text using various ROT cipher methods. Perfect for puzzle solving, learning about basic cryptography, or just having fun with text transformation.

🔄 Multiple Cipher Modes:
• ROT13 - Classic letter substitution (A→N, B→O, etc.)
• ROT5 - Number substitution (0→5, 1→6, etc.)
• ROT18 - Combined ROT13 for letters and ROT5 for numbers
• Custom ROT - Create your own patterns with custom shift values

✨ Key Features:
• Real-time encoding and decoding
• Copy functionality
• Clean, ad-free experience
• Works completely offline

💡 Perfect for:
• Puzzle enthusiasts
• Students learning cryptography
• Online communities using ROT ciphers
• Anyone interested in text transformation

Note: ROT ciphers are simple substitution ciphers intended for fun and educational purposes. They are not secure for encrypting sensitive information.

Privacy First: No ads, no tracking, no data collection. Everything works offline!

What’s new

Features:
Multiple ROT cipher modes support:
- ROT13 (letter substitution)
- ROT5 (number substitution)
- ROT18 (both letters and numbers)
- Custom ROT (customizable shift values)