Hex Dump Viewer

View a hex dump of text

A hex dump shows the raw bytes of data in hexadecimal alongside a readable ASCII representation, the classic output of command-line tools like hexdump and xxd. This viewer turns text into such a dump: each line shows a byte offset, sixteen bytes in hexadecimal split into two groups of eight, and an ASCII column where printable characters are shown and others appear as dots. The text is first encoded as UTF-8, so multi-byte characters are shown as their actual bytes.

This layout makes it easy to inspect exactly what bytes a piece of text contains, including hidden or non-printable characters.

Why inspect bytes

Looking at the byte-level representation of text is invaluable for debugging encoding problems, spotting invisible characters like zero-width spaces or unexpected line endings, and understanding how characters map to bytes in UTF-8. The ASCII column lets you read the printable content while the hex reveals everything, including control characters that would otherwise be invisible.

Seeing the offsets also helps you locate a specific byte within a larger piece of data. Everything is computed in your browser, so the text you inspect stays private. All processing happens locally in your browser.

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