The ADFGX cipher was a field cipher used by the German Army during World War I. It is closely related to the ADFGVX cipher. ADFGX is a fractionating transposition cipher which combined a modified Polybius square with a single columnar transposition. The cipher is named after the five possible letters used in the ciphertext: A, D, F, G and X. These letters were chosen deliberately because they sound very different from each other when transmitted via morse code. The intention was to reduce the possibility of operator error.
The following buttons can be used to manipulate the text into various forms such as uppercase, lowercase, reverse text, etc. The choice text chosen will be copied and a new page will be opened.