Identify a File's Real Type

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

Ez da saioa hasi beharFitxategiak pribatuak dira

Jaregin fitxategiak hemen edo egin klik arakatzeko

Any file ez dago fitxategien tamaina mugarik

Arakatu fitxategiak

Zure fitxategiak ez dira inoiz zure gailutik irteten. Prozesamendu guztia zure arakatzailean gertatzen da lokalean.

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.

Aukeratu Fitxategia

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

Prozesua

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

Deskargatu

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

✓Erabat doakoa, ezkutuko kosturik, inoiz

✓Ez da konturik, posta elektronikorik edo saioa hasteko beharrik

✓Fitxategiak ez dira inoiz zure gailutik irteten

✓Ez dago fitxategien tamaina mugarik

✓Ez dago ur-markarik edozein irteeratan

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