Learn How File Formats Work

Explore the byte structure of real files to understand formats.

Hindi kailangan ng loginNananatiling pribado ang mga file

I-drop ang mga file dito o mag-click para mag-browse

Any file walang limitasyon sa laki ng file

I-browse ang mga file

Ang iyong mga file ay hindi kailanman lumalabas sa iyong device. Lahat ng pagproseso ay nangyayari nang lokal sa iyong 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.

learning tips

🎓

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.

Pumili ng File

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

Iproseso

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

I-download

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

✓Ganap na libre — walang nakatagong bayad, kailanman

✓Walang kinakailangang account, email, o login

✓Ang mga file ay hindi kailanman lumalabas sa iyong device

✓Walang anumang limitasyon sa laki ng file

✓Walang watermark sa anumang output

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