Inspect files as hex and ASCII.

Hex Viewer opens any file as a side-by-side hex and ASCII dump and lets you search for text or byte patterns inside it - the right tool when a file will not open, a header looks wrong, or you just need to see what is really in there.

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Foldout Inspect files as hex and ASCII tool screen on macOS
Processes on your MacTool work stays inside the local app.
Signed and notarizedBuilt for Apple Silicon Macs.
No usage trackingFoldout does not track what you do in the app.
Paddle checkoutPaddle shows price, tax, and terms before purchase.
What it does

See what is really inside any file, byte by byte.

See a file as hex and ASCII columns.

Search for text or specific byte patterns.

Inspect binaries and unknown formats.

Understand a file when nothing else opens it.

Detailed capabilities

What Hex Viewer covers.

Concrete features, inputs, and workflow details for this tool.

Hex and ASCII together

Read the raw bytes next to their text interpretation, so a file header or a corrupt section is right there to see.

Find a needle in the bytes

Search for a string or a byte sequence to jump straight to the part you care about.

For files that misbehave

Perfect for poking at an unknown format, checking a magic number, or confirming what a file really contains.

How to use it

From opening the tool to saving the result.

  1. 01

    Add a file.

  2. 02

    Review the hex and ASCII dump.

  3. 03

    Search for text or bytes.

  4. 04

    Copy the data you need.

Questions

Before you try Hex Viewer

Does Hex Viewer edit files?

No. It is an inspection tool.

One app. 100+ tools.

Add Hex Viewer to your Mac toolbox.

Download Foldout, try the full toolbox, then choose a plan when it fits.