Learn How File Formats Work

Explore the byte structure of real files to understand formats.

Tidak perlu loginFile tetap privat

Seret file ke sini atau klik untuk menjelajah

Any file tidak ada batasan ukuran file

Jelajahi file

File Anda tidak pernah meninggalkan perangkat. Semua pemrosesan terjadi secara lokal di browser Anda.

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.

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🎓

Compare the headers of a PNG, a PDF, and a ZIP to see how formats announce themselves.

🔢

Seeing real bytes alongside ASCII makes format specs much easier to follow.

🧩

A hands-on way to understand magic numbers and headers.

🔒

Experiment freely — nothing is uploaded.

Pilih file

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

Proses

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

Unduh

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

✓Sepenuhnya gratis — tidak ada biaya tersembunyi, selamanya

✓Tidak perlu akun, email, atau login

✓File tidak pernah meninggalkan perangkat Anda

✓Tidak ada batasan ukuran file sama sekali

✓Tidak ada tanda air pada output apa pun

Identify a File's Real Type

Check a file's magic number to see what it actuall

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