Building Enigma machine…

This is the Enigma machine

The German military used Enigma during World War II to send encrypted messages. Polish, British, and French cryptanalysts used weaknesses in the machine and its operating procedures to decrypt intercepted communications.

Learn the Enigma's historyClick or tap a rotor window to set its letter.

Set a letter with A–Z or the up and down arrow keys. You can also drag the letter up or down.

9 / 10 cables connected

Sheet reference & procedureTry choosing a rotor and its position, or continue.

Click an alphabet ring to change its setting.

Press any letter key to follow the current.

Type on your keyboard press keys on the Enigma machine.

I will help you write your first encrypted telegram.

Press Enter to send

Morse key

The operator sends the lamp letters in Morse. Enigma itself does not transmit.

These teaching instruments represent the separate radio transmission step. Morse plays at 12 words per minute.

Encrypted message: No letters yet

Recovered message: No letters yet