Hex Dump Viewer (Binary & Text)
View the raw bytes of a file or string as a 16-column hex dump with an ASCII panel
Upload a file or type in text and see its underlying bytes rendered as a precise hexadecimal dump alongside an ASCII view. It's the browser-based equivalent of running xxd or hexdump, useful for checking file offsets, inspecting headers, and doing byte-level analysis without installing anything.
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🔒 Everything runs 100% in your browser. Your files and input are never uploaded to any server.
How to use
- Choose the text input tab or the file upload tab.
- Type your text, or drop the binary file you want to inspect into the drop zone.
- Set the offset base (hex or decimal) and bytes per row (8 or 16), then read through the dump.
- Click the copy button to grab the generated hex dump as text.
FAQ
- What do the periods (.) in the ASCII panel mean?
- They stand in for bytes that can't be displayed as readable characters — control characters (0x00–0x1F and others) and similar non-printable values. Substituting a period keeps the column aligned and readable.
- Can it handle large files?
- Yes. The full byte array is loaded into browser memory but rendered one page at a time (roughly 512 B to 4 KB per page), so you can page through a big file without the browser stalling.
- Can the result differ between typing text directly and uploading a file?
- Yes — typed text is dumped based on the bytes your browser encodes as UTF-8, while an uploaded file is dumped from its original stored bytes as-is. If a file uses a different encoding, the same characters can show different byte values.