Identify a File's Real Type

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

Nessun accesso richiestoI file rimangono privati

Trascina i file qui o clicca per sfogliare

Any file nessun limite di dimensione file

Sfoglia file

I tuoi file non lasciano mai il tuo dispositivo. Tutta l'elaborazione avviene localmente nel browser.

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.

Scegli file

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

Elabora

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

Scarica

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

✓Completamente gratuito — nessun costo nascosto, mai

✓Nessun account, email o accesso richiesto

✓I file non lasciano mai il tuo dispositivo

✓Assolutamente nessun limite di dimensione file

✓Nessuna filigrana su nessun output

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