File Type & Hex Inspector

See a file’s TRUE type from its magic bytes (not the extension) plus a hex dump — read locally.

See a file’s TRUE type from its magic bytes (not the extension) plus a hex dump — read locally. Free and 100% private — runs entirely in your browser, nothing is ever uploaded.

About File Type & Hex Inspector

File Type & Hex Inspector is a free, browser-based developer utility that lets you see a file’s TRUE type from its magic bytes (not the extension) plus a hex dump — read locally. Because it runs entirely on your device, there’s nothing to install, no account to create, and your data is never uploaded to a server.

How to use File Type & Hex Inspector

  1. Open File Type & Hex Inspector — it loads in any modern browser, with no sign-up.
  2. Paste or type your input.
  3. Get the result instantly, processed locally on your device.
  4. Copy or download the output — what you entered is never sent anywhere.

Frequently asked questions

Is File Type & Hex Inspector free?
Yes — File Type & Hex Inspector is completely free, with no account, sign-up or usage limits.
Is my data private?
Yes. File Type & Hex Inspector runs 100% in your browser, so your files and text are processed on your own device and never uploaded.
Do I need to install anything?
No — File Type & Hex Inspector works in any modern desktop or mobile browser with nothing to download.