Hex Viewer
View any text or bytes as hexadecimal and convert hex back to text. Side-by-side hex/ASCII view like a hex editor.
How to use the Hex Viewer
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Type or paste text to see its hex bytes.
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Or paste a hex string and decode back to text.
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Copy either the hex or the text output.
What is a hex viewer?
A hex viewer displays the raw bytes behind text — every character becomes its two-digit hexadecimal equivalent. It's essential for debugging encodings, inspecting binary data, analyzing protocol headers, and understanding how computers store text. This tool shows a classic side-by-side hex/ASCII view and can decode hex strings back to text.
Key features
- Real-time hex/ASCII side-by-side view
- Convert hex strings back to text
- Shows byte offsets for each line
- Fully client-side — your data stays private
Frequently asked questions
What do I use a hex viewer for?
Debugging character encoding issues, inspecting binary file headers, analyzing network packets, and understanding byte-level data representation.
Does it show Unicode properly?
Yes — it shows the actual UTF-8 byte representation of each character, including multi-byte sequences for non-ASCII characters.
Is my data uploaded?
No. All viewing and conversion happens locally in your browser.