Cryptography

Encrypt or decrypt text using the Caesar shift cipher.

Apply ROT47 rotation to all printable ASCII characters.

Encrypt or decrypt text using the Vigenère polyalphabetic cipher.

Apply the Atbash cipher — A↔Z, B↔Y, C↔X, etc.

XOR text against a key — supports UTF-8, hex, or decimal keys.

Encode text to Morse code or decode Morse code back to text.

Convert text to NATO phonetic alphabet words or reverse.

Substitute letters with their position in the alphabet (A=1, B=2, …).