Hex encode and decode

Convert text to hexadecimal UTF-8 bytes or decode hex bytes back into text. Inspect a space-separated byte representation.

Free · No sign-up · Files stay on your device

Features

  • Encode each UTF-8 byte as two hexadecimal digits.
  • Decode hex with or without whitespace between bytes.
  • Support multilingual text through UTF-8.

How to use this tool

  1. Paste text or hexadecimal bytes.
  2. Choose the conversion direction and run the tool.
  3. Review and copy the result.

Good to know

This tool is free without sign-up, with unlimited processing and exports within the displayed input limits.

  • Decoded bytes must form valid UTF-8. Remove prefixes such as 0x before decoding.

Privacy and local processing

This tool processes your input in your browser. Source files and text are not uploaded to a FormatOwl processing server. Advanced-tool access and trial balances are checked online using tool IDs, file types, sizes and page counts. Free tools do not require account authorization. Save the results you need before leaving or refreshing the page.

Read our privacy policy

Keep creating