Caesar Cipher Online

Encrypt or decrypt text using the classic Caesar cipher shift. A fun and simple way to send secret messages.

About this tool

Input your plain text to see the ROT3 encrypted version instantly....

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Caesar Cipher Online - Encrypt & Decrypt Text

Use the classic Caesar cipher (shift index of 3) to encode your messages. A historical and educational tool for learning about basic cryptography.

How to use Caesar Cipher

1

Enter Text

Paste the message you want to encode.

2

Cipher

Click 'Caesar Cipher Online'.

3

Copy Code

Save your encrypted secret message.

Frequently Asked Questions

What shift is used?

This tool uses a standard shift of 3 characters.