XOR Cipher
Apply a repeating-key XOR to text or bytes.
About this tool
Repeating-key XOR — the simplest possible cipher and trivially broken by frequency analysis. Useful for puzzles, CTFs, and learning crypto basics. NOT for any real secrecy.
Apply a repeating-key XOR to text or bytes.
Repeating-key XOR — the simplest possible cipher and trivially broken by frequency analysis. Useful for puzzles, CTFs, and learning crypto basics. NOT for any real secrecy.