Learn How File Formats Work

Explore the byte structure of real files to understand formats.

Nav nepieciešama pieteikšanāsFaili paliek privāti

Nometiet failus šeit vai noklikšķiniet, lai pārlūkotu

Any file nav faila izmēra ierobežojuma

Pārlūkot failus

Jūsu faili nekad neatstāj jūsu ierīci. Visa apstrāde notiek lokāli jūsu pārlūkprogrammā.

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.

Izvēlēties failu

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

Apstrādāt

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

Lejupielādēt

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

✓Pilnīgi bezmaksas — nekad nav slēptu izmaksu

✓Nav nepieciešams konts, e-pasts vai pieteikšanās

✓Faili nekad neatstāj jūsu ierīci

✓Nav nekādu faila izmēra ierobežojumu

✓Nav ūdenszīmju nevienā izvadē

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