Online Hex Viewer & Hex Dump Tool

Inspect any binary payload byte-by-byte. CyberNexus Decoder renders a classic 16-byte aligned hex dump with offsets and an ASCII pane, converts between hex and raw bytes, and highlights file structure — useful for reverse engineering and forensics.

Open the hex viewer tool →

How to use the hex viewer

Paste hex or drop a binary file into the input.
Apply "To Hex Dump" to view offsets, hex bytes, and ASCII.
Use "From Hex Dump" to convert a dump back to raw bytes.
Run "Parse PE Header" or "Entropy Map" for deeper binary analysis.

Features

16-byte aligned hex dump with offset and ASCII columns.
Bidirectional hex / hex-dump conversion.
Magic-byte file type identification.
Entropy mapping to locate encrypted regions.

Frequently asked questions

How do I view a file in hex online?

Drop the file into the input and apply To Hex Dump. The viewer shows offsets, hex byte values, and an ASCII representation.

Can I convert a hex dump back to a file?

Yes. Use From Hex Dump to reconstruct the original bytes from a formatted hex dump.