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Frequently asked questions
What does this tool do?
It converts text to hexadecimal bytes (UTF-8) and back. You can switch between uppercase and lowercase output and add space or colon separators.
Why does decoding fail on my input?
Hex must contain only 0-9 and A-F with an even number of digits. Remove any other characters and try again. Spaces and colons are ignored.
Is my text uploaded?
No. Conversion runs entirely in your browser.
Preview
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