Hex Decoder

Decode hexadecimal text to its original format with various advanced options. Fast, secure, and completely browser-based decoding.

About Hex Decoder

Overview

The Hex Decoder is a tool for changing hexadecimal text back to its original form. Hexadecimal is a base-16 system often used in programming and data analysis. This decoder is useful for developers, security experts, and anyone else who needs to read hex-encoded information.

Features

  • Real-time decoding with live mode for UTF-8.
  • Supports over 40 character sets, including UTF-8 and ASCII.
  • Ignores whitespace like spaces and newlines.
  • Can process each line by itself.
  • Lets you upload and decode files up to 100MB.
  • One-click copy to clipboard.
  • Clear error messages.
  • Checks for invalid hexadecimal characters.
  • All work is done in your browser to keep your data private.
  • Has a dark mode for easier viewing.
  • Clean, professional look.
  • Works well on mobile devices.

How to Use

  1. Put your hexadecimal data in the input box. Spaces and newlines are ignored.
  2. Choose the right character set. UTF-8 is a good choice for most situations.
  3. You can decode each line on its own, which is good for handling many entries at once.
  4. Turn on live mode to see the decoded text as you type. This only works with UTF-8.
  5. Press the DECODE button to process your data.
  6. The result will show up in the output box.
  7. Click "Copy to clipboard" to save the result.
  8. You can also upload and decode files up to 100MB.

FAQ

What is hexadecimal?

Hexadecimal, or hex, is a base-16 number system used in computing. It represents numbers using 16 symbols: 0-9 for the values zero to nine, and A-F for the values ten to fifteen.

Why are spaces ignored?

Hex strings are often shown with spaces between pairs of characters to make them easier for people to read. This tool ignores spaces and newlines so you can paste hex data without having to format it first.

What if I enter a character that is not a valid hex character?

If you type a character that is not a valid hex digit (0-9, A-F, or a-f), the tool will give you an error message. You will need to fix the input before it can be decoded.