Convert text to hexadecimal bytes or decode a hex byte string back to UTF-8 text.
Mode
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Bytes
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Characters
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Enter the example value or paste your own input, choose the mode when one is available, and read the first result card for the direct answer. The output area gives a copyable block for code reviews, documentation, API tests, classwork or troubleshooting notes.
What the result means
The result shows the exact byte-level representation of a text string or converts clean hex pairs back into readable text.
What is not included
Hex input must contain complete byte pairs. This is a text utility, not a binary file viewer.
Privacy note
The calculation runs in your browser. Avoid pasting production secrets, credentials, private keys, customer data or regulated personal data unless your own policy allows browser-based tools.