Hex ↔ Text Converter

About this calculator

This tool converts text into a hexadecimal byte string, where each character's underlying numeric code is written as a two-digit base-16 value, or decodes a hex string back into readable text. Hexadecimal is used because two hex digits map cleanly onto one byte, making it a far more compact and readable way to represent raw byte data than writing out the equivalent binary.

Developers use hex-text conversion constantly when debugging network traffic, inspecting the raw bytes of a file, working with color codes, memory dumps, or low-level protocol data, since many debugging tools and logs display data in hex rather than plain text. It is also common in puzzle-solving and CTF challenges where a message has been hidden as a hex string, and in cryptography-adjacent work where converting between text and its hex representation is a routine intermediate step.