Identify a File's Real Type

Check a file's magic number to see what it actually is.

Engin innskráning krafistSkrár eru persónulegar

Slepptu skrám hér eða smelltu til að fletta

Any file engin skráastærðarmörk

Skoðaðu skrár

Skrárnar þínar fara aldrei úr tækinu þínu. Öll vinnsla fer fram á staðnum í vafranum þínum.

Inspect the raw bytes of any file — offset, hex, and ASCII columns, like a classic hex editor. The file is read locally and never uploaded.

file identification tips

🔎

The first bytes (magic number) reveal the true format regardless of the file extension.

🏷️

The tool names common types automatically — PNG, PDF, ZIP, MP4, and more.

🕵️

Useful when a file has the wrong or no extension, or you suspect it's mislabeled.

🔒

Read locally — safe for unknown files.

Veldu File

Drop your file into the tool above. It stays entirely on your device — nothing is sent to any server.

Ferli

The tool processes your data instantly in your browser using JavaScript. No server, no waiting.

Sækja

Get your result instantly. Nothing is stored after you leave the page — complete privacy.

✓Alveg ókeypis - aldrei falinn kostnaður

✓Enginn reikningur, tölvupóstur eða innskráning krafist

✓Skrár fara aldrei úr tækinu þínu

✓Engin takmörk fyrir skráarstærð

✓Engin vatnsmerki á hvaða framleiðslu sem er

Debug a Binary File

Inspect headers and bytes while debugging a file f

Find Text Strings in a File

Spot readable text embedded in a binary file.

Inspect a Suspicious File Safely

Examine an unknown file's bytes without opening or

Learn How File Formats Work

Explore the byte structure of real files to unders