R
ROT13 / Caesar Cipher
Encode or decode text with ROT13 or any Caesar cipher rotation (1-25 shifts).
Text
v1.0.0
18 uses
R
ROT13 / Caesar Cipher
Esc
or
Ctrl+Shift+F
to exit
1
ROT13
25
About This Tool
This ROT13 and Caesar cipher tool lets you encode or decode text using letter-shift ciphers with customizable rotation values from 1 to 25. It is perfect for puzzle enthusiasts, students learning about cryptography, and developers who need quick text obfuscation. The tool processes text instantly and preserves non-alphabetic characters, making it easy to experiment with classical encryption techniques.
How to Use
- 1 Enter or paste the text you want to encode or decode
- 2 Select the rotation value (default is 13 for ROT13, or choose 1-25)
- 3 View the encoded or decoded output updated in real time
- 4 Copy the result to use in messages, puzzles, or code
More Tools in Text
U
Unicode Character Explorer
TextBrowse and search Unicode characters with copy support.
W
Word Counter
TextCount words, characters, sentences, and paragraphs in your text. Estimate reading time.
M
Morse Code Translator
TextConvert text to Morse code and back, with audio playback of dots and dashes.