Caesar Cipher

Text

Shift: 3

Action

Result

Text Tools 22.1K uses

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How to use the Caesar Cipher tool

Using our Caesar Cipher is incredibly easy and entirely free. We designed our Text Tools specifically for everyday users who need to get things done quickly without downloading complicated software or registering for an account.

Enter your text: Type the message you want to encrypt or decrypt.
Set the shift: Choose a shift value (3 is the classic Caesar shift) and pick encrypt or decrypt.
Copy the result: The ciphered text appears instantly — copy it to share.

100% Secure

Your files are encrypted and automatically deleted from our servers after 1 hour. Your privacy is guaranteed.

Lightning Fast

We use high-performance cloud processing to ensure your files are ready in seconds, not minutes.

Works on Mobile

No app installation needed. Use our tools seamlessly on iOS, Android, Mac, or Windows.

Frequently Asked Questions

What shift should I use?

The original Caesar cipher uses a shift of 3, but any value from 1 to 25 works as long as both sides use the same one.

Does it keep punctuation and numbers?

Yes. Only letters are shifted; spaces, numbers, and symbols stay unchanged.

Is this secure encryption?

No, the Caesar cipher is for learning and fun, not real security. Use it for puzzles and education.

Is it free?

Yes, completely free.