Caesar Cipher Translator
Encode and decode the Caesar cipher, the shift-by-three secret writing of Julius Caesar, and season one of Gravity Falls.
About Caesar
The Caesar cipher is where cryptography begins: Julius Caesar protected military orders by shifting every letter three places down the alphabet, trusting that his enemies, as Suetonius dryly noted, could not read them. A becomes D, B becomes E, and VENI VIDI VICI becomes YHQL YLGL YLFL.
Twenty centuries later it encrypts the end-credit messages of Gravity Falls season one and the first puzzle of every escape room. Krunes uses the classic +3 shift in both directions.
- Caesar’s own shift was 3; his nephew Augustus used a lazier shift of 1.
- Gravity Falls season one credits are all Caesar-3, season two graduated to Atbash and Vigenère.
- ROT13 is just a Caesar cipher with a shift of 13.
- With only 25 possible shifts, brute-forcing it is a beginner cryptographer’s first victory.
The Caesar Key, A to Z
Hover or tap any letter to study it. This chart is the full key used by the translator above.
Related Languages
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