Decode Hexadecimal Strings to Readable Text Convert hexadecimal values back to readable text.

The tool's onProcess function uses the replace method with regular expressions to remove '0x' prefixes and non-hexadecimal characters from the input string, resulting in a cleaned string containing only valid hexadecimal digits. It checks if the length of this cleaned string is even, as each ASCII character requires two hex digits for representation, and returns an error message if it's not. The function then splits the cleaned string into pairs of hex digits using a for loop with a step size of 2, storing these pairs in a bytes array. Each pair is parsed as a base-16 integer using parseInt with a radix of 16, and this integer value is used as an ASCII code point to generate the corresponding character via String.fromCharCode. The resulting characters are joined together into a single string, which represents the decoded text.

The React useCallback hook is used to memoize the onProcess function, ensuring it's not re-created unnecessarily on every render, which improves performance by avoiding redundant computations. When the input string changes, the onProcess function is called with the new input, and its return value is displayed as the output of the tool. The TextToolLayout component handles rendering the input field, output label, and other UI elements, while the onProcess function focuses solely on performing the hex to text conversion. By utilizing JavaScript's built-in string manipulation methods and ASCII character encoding, the tool efficiently decodes hexadecimal strings into human-readable text.