Free Online Tool

Binary/Hex Converter

Convert between binary, hexadecimal, decimal, and octal number systems.

How to Use Binary/Hex Converter

  1. Type or paste your text into the input box.
  2. Choose hexadecimal or binary output; each character is converted byte by byte.
  3. Values are space-separated (two hex digits or eight bits per byte); decode mode converts them back to text.
  4. Copy the result. All conversion happens locally in your browser.

Each character maps to one byte via its character code. Hex shows that byte as two digits (00–FF); binary shows it as eight bits.

Examples

Text to hex — input:

Hi

Output:

48 69

Text to binary — input:

Hi

Output:

01001000 01101001

Decode hex (reverse) — input:

48 69

Output:

Hi

Decoding parses each hex/binary group back into a character.

Features

Privacy Focused

All processing happens in your browser. No data is sent to servers.

Free Forever

No registration, no limits, completely free to use.