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Tool to decrypt/encrypt with Caesar cipher (or Caesar code), a shift cipher, one of the most easy and most famous encryption systems, that uses the substitution of a letter by another one further in the alphabet.
- Shift Cipher
A single shift (all letters are shifted by the same value)...
- Shift Cipher
Tool to decode keyed Caesar cipher. The keyed Caesar cipher is a variant of the Caesar Cipher that provides increased protection. Instead of having all letters in alphabetical order, it starts with a code word (the encryption key).
This is a complete guide to the Caesar cipher and the tools you need to decode it. Learn about its famous history and where it is still in use today, or use the Caesar Cipher tool to solve it automatically.
Caesar cipher: Encode and decode online. Method in which each letter in the plaintext is replaced by a letter some fixed number of positions down the alphabet. The method is named after Julius Caesar, who used it in his private correspondence. Decimal to text.
The Caesar Cipher Tool allows you to encrypt and decrypt text using the classic Caesar Cipher algorithm. When you are selecting a key, such as 13, the tool performs encryption similar to ROT13, shifting each letter by 13 places to obscure the original message.
The Caesar Cipher is a type of substitution cipher where each letter in the text is replaced by another letter a fixed number of positions further down the alphabet. For example, with a shift of three positions to the right, the letter 'A' is replaced by 'D', 'B' by 'E', and so on.
A single shift (all letters are shifted by the same value) is called Caesar Code. A multiple shift, according to a sequence or a key that is repeated (the letters are shifted from each of the key values), is called Vigenere Cipher.
