Hex to Text Converter

Understanding Hexadecimal and Character Code Points

Hexadecimal Number System Explained

• The hexadecimal system ("hex") is a base-16 numeral system used widely in computing. It uses 16 digits: 0–9 and letters A–F.
• Each hex digit represents exactly four binary digits (a "nibble"), which is why hex is such a compact way to write out binary-derived values. Example: F in binary is 1111.
• Hex is standard in memory addressing, HTML colors (e.g., #FF0000), and programming for representing byte- and character-level data.

Character Code Points: ASCII and Unicode

• Computers don't store letters directly — every character is really a number under the hood, defined by a text encoding standard. ASCII covers the basic Latin alphabet with 128 code points (0–127); Unicode extends this to cover essentially every character in every writing system.
• Each character has an associated code point — for instance, 'A' is 65 in decimal, 0x41 in hexadecimal, or 01000001 in binary. This tool works with the hexadecimal form.
• Because this converter reads the actual Unicode code point behind each hex value, it isn't limited to the 128 basic ASCII characters — accented letters, symbols, and characters from other scripts all have their own code points and decode the same way.
• Converting hex values back to text is useful for decoding system logs, checking how a string was encoded, solving character-code puzzles, and generally understanding content that's been represented as raw hex.

Conversion Table: Hexadecimal, Character, and Binary Reference

For quick reference, this hex to text conversion table shows common hex code points, their character equivalents, and corresponding binary values:

Beyond code point 127, Unicode continues with characters like accented letters, symbols, and scripts from other languages — this converter decodes those hex values exactly the same way, reading each as its real code point rather than stopping at the basic ASCII range.

Hex to Text Conversion in Code

Here are working examples of decoding hex to text and encoding text to hex in three common languages. The fastest way to compute a hex value's two's complement at a specific bit width is the hex twos complement calculator.

JavaScript Implementation

// Converts a hex string (byte pairs) to text
function hexToText(hexString) {
  let result = '';
  for (let i = 0; i < hexString.length; i += 2) {
    let byte = hexString.substr(i, 2);
    result += String.fromCharCode(parseInt(byte, 16));
  }
  return result;
}
// Example: hexToText("48656C6C6F") returns "Hello"

Java Implementation

// Converts a text string to its hex representation
String text = "Hello";
StringBuffer hex = new StringBuffer();
char[] chars = text.toCharArray();
for (int i = 0; i < chars.length; i++) {
  hex.append(Integer.toHexString((int) chars[i]));
}
// hex.toString() returns "48656c6c6f"

C++ Implementation

#include <iostream>
#include <string>
#include <sstream>
#include <iomanip>
int main() {
  std::string hex = "48656C6C6F";  // example input
  std::string output;
  for (size_t i = 0; i < hex.length(); i += 2) {
    std::string byte = hex.substr(i, 2);
    char chr = (char)(int)strtol(byte.c_str(), nullptr, 16);
    output.push_back(chr);
  }
  std::cout << output << std::endl;   // Output: Hello
}

Each example follows the same core flow: split the hex string into two-digit groups, convert each group to its decimal code point, then map that code point to a character (or the reverse, for encoding).

Frequently Asked Questions

Does this support letters beyond basic English text?

Yes — it works with any Unicode character, not just the basic ASCII range. Each character's actual code point is used, whatever it is.

Is this the same as encryption?

No. This is a direct, publicly-known representation of each character's code point, not a cipher, and it doesn't provide any security or secrecy.

How should I separate hex values when decoding?

Separate each value with a space or a new line — the tool splits on whitespace and treats each token as one character's code point.

Does this tool send my text anywhere?

No. Everything runs locally in your browser using client-side JavaScript. Nothing you type is uploaded or stored.