Caesar Cipher Tool

Shift cipher with custom rotation

Input Text

11325

Cipher Text

Input Text

What is Caesar Cipher Tool?

Caesar Cipher Tool encrypts and decrypts text using the classic letter-shift cipher. Choose any rotation amount from 1 to 25 to encode your message, or use brute-force mode to try all shifts at once for decryption.

How to use

  1. Enter the text you want to encrypt or decrypt in the input field.
  2. Set the shift amount (1-25) and choose encrypt or decrypt direction.
  3. View the result instantly, or use brute-force mode to see all 25 possible shifts.

Result

You want to encode the message 'ATTACK AT DAWN' with a shift of 3. The result is 'DWWDFN DW GDZQ'. Share the shift number with the recipient so they can decode it.

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