The complete reference
The ultimate cipher and code reference
Every code and cipher in one place: the full charts for Morse, binary, braille, the NATO phonetic alphabet, pigpen and the Polybius square, plus a one-line explanation of every classic cipher. Bookmark it, print it, share it.
Last updated 14 July 2026
Morse code alphabet
The full A to Z, built so common letters get the shortest codes. See the alphabet guide or open the Morse translator.
Morse code numbers
Binary alphabet (8-bit ASCII)
Each letter as its 8-bit binary byte. More in the binary guide, or convert your own with the binary translator.
Braille alphabet
Grade 1 braille, one cell per letter, with the dot numbers for each. See the braille guide or the braille translator.
Braille numbers
Digits reuse the letters A to J behind the numeric indicator. Full detail and a 1 to 100 chart in the braille numbers guide.
| Number | Braille | Reuses letter | Dots in the digit cell |
|---|---|---|---|
| Numeric indicator | ⠼ | none | 3-4-5-6 |
| 1 | ⠼⠁ | A | 1 |
| 2 | ⠼⠃ | B | 1-2 |
| 3 | ⠼⠉ | C | 1-4 |
| 4 | ⠼⠙ | D | 1-4-5 |
| 5 | ⠼⠑ | E | 1-5 |
| 6 | ⠼⠋ | F | 1-2-4 |
| 7 | ⠼⠛ | G | 1-2-4-5 |
| 8 | ⠼⠓ | H | 1-2-5 |
| 9 | ⠼⠊ | I | 2-4 |
| 0 | ⠼⠚ | J | 2-4-5 |
NATO phonetic alphabet
Alfa to Zulu, the words that survive a noisy radio. Full detail in the NATO guide.
Pigpen cipher
The Freemason symbol cipher, letter by letter. Learn it in the pigpen guide.
Polybius square
Every letter as a row and column number on a 5x5 grid. Read the full story in the Polybius square guide or open the Polybius square translator.
Classic ciphers at a glance
Read the theory in what is a cipher, the Caesar explainer and the Vigenere explainer.