| Monoalphabetic Substitution Cipher | This applet allows people to learn about and to work with monoalphabetic substitution ciphers |
| Visual Cryptography | This applet allows people to perform visual cryptography. A passphrase is entered into a box and then a message is typed. The applet will then create two images, one named "steam" and one named "ciphertext. When the two papers are printed out and held up to each other, you can see your message! |
| Affine Cipher | This applet allows people to learn about and work with affine ciphers |
| Enigma Machine | The Enigma machine was critical to nazi codes. This applet allows you to visually see how the enigma machine worked. You can type in a message and have this virtual enigma machine code your message. |
| Rail Cipher | This applet allows people to learn about and use a rail fence cipher. Also on this website are other ciphers. These include the pigpen cipher, Vigenere cipher, and playfair cipher. |