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Caesar Cipher

Shift each letter by a chosen number to encode or decode classic Caesar cipher text — great for puzzles and games.

Text

Output

How to use the Caesar Cipher

Shift each letter by a chosen number to encode or decode classic Caesar cipher text.

Steps

  • Set the shift (e.g. 3) and choose Encrypt or Decrypt.
  • Enter your text and click Apply; the output appears below.
  • Use Copy to grab the result.

Encrypting with shift N and then decrypting with the same shift returns the original text. Great for puzzles and games.