Text to Hex Converter
Encode text as UTF-8 bytes, rendered as two hexadecimal digits per byte. One visible character can produce several bytes.
Conversion runs only in this browser. Input and output are not uploaded.
Input size: 0 B.
How this converter works
Text is encoded to UTF-8 bytes and each byte is rendered with exactly two hexadecimal digits.
- Lowercase, spaced output is the default.
- Case, separator, and 0x prefix affect formatting only.
- The complete output is retained for large accepted inputs.
Frequently asked questions
Why does emoji use several pairs?
UTF-8 represents many characters with multiple bytes.
Does this output Unicode code points?
No. It outputs UTF-8 bytes only.
Using this tool
Encode text as UTF-8 hex
Render each UTF-8 byte as two hexadecimal digits with case, separator, and optional `0x` formatting controls.
Input and output
Example: `Hi` becomes `48 69`; `é` requires two byte pairs in UTF-8.
Important behaviour
Formatting choices do not change the underlying bytes, and the complete generated output remains available to copy or download.
Keep in mind
This route outputs UTF-8 bytes, not Unicode code-point notation.
Conversion is performed in the browser. Copying or downloading happens only when you choose those actions.