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- Works offline
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Text to Hex
Convert text to hex online: every byte of your text is written as two hexadecimal digits, so "Hi" becomes 48 69. Type or paste your text and the hex appears as you type. Free, no sign-up, and nothing leaves your browser.
How to convert text to hex
- 1Type or paste your text into the input box
- 2Read the hex bytes in the result box
- 3Click "Copy" to take them with you
- Your text as lower case hex bytes, separated by spaces.
What you get
- Nothing is uploaded.The conversion runs in your browser, so your text stays on your device.
- Updates as you type.The result follows every keystroke, with no button to press.
- Works offline.Once the tool has been opened, it needs no connection.
What you can do
- Turn any text into hexadecimal, two digits per byte, separated by single spaces.
- Convert letters, digits, punctuation, line breaks and symbols. Characters outside ASCII are written as their UTF-8 bytes, so "é" gives c3 a9.
- Copy the result with one click, for a debugging session, a colour or a byte comparison.
- Convert hex back with Hex to Text.
Good to know
- Digits a to f are lower case. There is no 0x prefix.
- The output is the UTF-8 encoding of your text, so one character can give up to four bytes.
- Empty input gives an empty result.
Questions
How do I convert text to hex?
Paste your text into the input box. The hex bytes appear in the result box straight away. Click "Copy" to copy them.
What is the hex of the letter A?
"A" is 41, because 65 in decimal is 41 in hex. A space is 20.
Why does ä give two bytes?
The tool uses UTF-8, where letters beyond ASCII need two to four bytes. "ä" is c3 a4.
Is my text uploaded?
No. Your browser does the conversion on your own device.