XOR / Hex Tool
XOR hex strings, brute-force single-byte XOR keys, convert between hex and ASCII. Essential for CTF cryptography and malware analysis.
XOR Analysis for CTF & Forensics
XOR is one of the most common operations in CTF cryptography and malware obfuscation. This tool can convert between hex and ASCII representations, XOR two strings or hex values together, and brute-force single-byte XOR keys — automatically finding the key that produces readable plaintext. The single-byte XOR brute-force is particularly useful for solving classic CTF challenges where data has been XOR'd with a single repeating key byte.