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Text to Hex

Convert text to hexadecimal encoding and back.

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About this tool

Text to Hex is a tool that converts written text into its hexadecimal representation and vice versa. Hexadecimal encoding is the foundation of digital data representation—every character, symbol, and emoji you type is ultimately stored as a number in your computer's memory, and hexadecimal is the most readable way to express those numbers. This tool makes the conversion instant and effortless, with no need to understand the underlying mathematics.

To use the tool, simply paste or type your text in the input field and click the convert button. If you want to reverse the process, input hex values (with or without '0x' prefixes or spaces) and convert them back to readable text. The tool automatically detects whether you're working with text or hex data, making it suitable for debugging code, inspecting binary files, analyzing protocols, or understanding how your data appears at the byte level.

Developers find this tool invaluable when working with APIs, cryptography, or low-level file formats where hex representation is standard. Students use it to learn about character encoding schemes and how digital information is fundamentally represented. The tool works entirely in your browser without requiring any server connection or special software, making it accessible from any device at any time.

Frequently Asked Questions

Code Implementation

def text_to_hex(text: str, separator: str = " ") -> str:
    """Convert UTF-8 text to hexadecimal string."""
    encoded = text.encode("utf-8")
    hex_parts = [f"{byte:02x}" for byte in encoded]
    return separator.join(hex_parts)

def hex_to_text(hex_string: str) -> str:
    """Convert hexadecimal string back to UTF-8 text."""
    # Remove common separators
    cleaned = hex_string.replace(" ", "").replace("-", "")
    if len(cleaned) % 2 != 0:
        raise ValueError("Hex string must have an even number of characters")
    byte_values = bytes(int(cleaned[i:i+2], 16) for i in range(0, len(cleaned), 2))
    return byte_values.decode("utf-8")

# Examples
print(text_to_hex("Hello"))       # 48 65 6c 6c 6f
print(text_to_hex("Hi", "-"))     # 48-69
print(hex_to_text("48 65 6c 6c 6f"))  # Hello
print(hex_to_text("48656c6c6f"))       # Hello

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