OmniFile Studio

Magic Bytes & File Signature Inspector

Read a file's leading bytes locally to detect its real type and check that it matches the extension.

100% Client-Side · Zero-Server-Upload · 100% Private

Drop any file to inspect

Only the first bytes are read, locally. Nothing is uploaded.

How it works

  1. 1Drop any file.
  2. 2The first bytes are read locally and matched against known signatures.
  3. 3See the real type, hex header and a match / mismatch badge.

Are my files uploaded to a server?

Never. Every tool runs inside your browser using WebAssembly and Web Workers. Your files stay on your device and are wiped from memory as soon as you download the result.