Tool for encoding and decoding with the Caesar cipher, a simple and famous shift cipher that replaces each letter with another one further down the alphabet. Compatible with ROT13 and other variants.

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, …

Jul 23, 2025 · The Caesar cipher is a simple encryption technique that was used by Julius Caesar to send secret messages to his allies. It works by shifting the letters in the plaintext message by a …

Discover the timeless Caesar cipher through our modern Caesar cipher translator. Named after Julius Caesar, who relied on it for secure military communications, this classic encryption technique shifts …

The Caesar cipher, also known as a shift cipher, Caesar's code, or Caesar shift is one of the oldest and most famous ciphers in history, and while deceptively simple it has been used for important secrets …

Modern Caesar Cipher tools, including the Caesar Cipher Encoder and Caesar Cipher Decoder, are primarily used for educational purposes. Many online Caesar Cipher translators provide an …

Use our Caesar cipher encoder to convert messages into cipher text or test every possible key to solve caesar cipher puzzles without knowing the original shift.

The most detailed Caesar cipher guide online: what it is, how it works, how to encode/decode, frequency analysis clues, brute-force cracking, common mistakes, variants like ROT13, and practice prompts.

A Caesar cipher[a] is one of the simplest and most widely known encryption techniques used in cryptography. It is a type of substitution cipher in which each letter in the plaintext is replaced by a …

Encode or decode any text instantly with our free online Caesar cipher tool. Enter your message and shift value (1–25) to encrypt/decrypt, or use brute force to try all 25 possible shifts. Perfect for …