Convert tools

Text to Hex Converter

Convert UTF-8 text into hexadecimal bytes or decode hex pairs back to text, including Japanese characters and emoji.

Convert in your browser · No sign-up

Each byte uses two hex digits, with optional whitespace. This is a byte encoding, not a Unicode code-point list; invalid UTF-8 is rejected.

Up to 100,000 UTF-16 units per input and 1,000,000 per result. See the supported formats and examples below.

How to use

  1. Convert UTF-8 text into hexadecimal bytes or decode hex pairs back to text, including Japanese characters and emoji.
  2. Choose the mode or options, then run the tool.
  3. Review the result, then copy or download the TXT file.

Example

Hi → 48 69

Details and limitations

Each byte uses two hex digits, with optional whitespace. This is a byte encoding, not a Unicode code-point list; invalid UTF-8 is rejected.

Text stays in your browser; it is not sent to a conversion server.

FAQ

Text to Hex Converter — What are the supported inputs and limits?

Each byte uses two hex digits, with optional whitespace. This is a byte encoding, not a Unicode code-point list; invalid UTF-8 is rejected.

Format references

Tool page updated: