Debug a Binary File

Inspect headers and bytes while debugging a file format.

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Drop files here, or click to browse

Any file no file size limit

Browse files

Your files never leave your device. All processing happens locally in your 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.

debugging tips

🐞

See exact byte values and offsets when a parser chokes on a file.

🔢

The aligned hex + ASCII columns make it easy to spot headers and string data.

📏

Offsets are shown in hex, matching most format specs and documentation.

🔒

Nothing is uploaded.

Choose File

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

Process

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

Download

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

✓Completely free — no hidden costs, ever

✓No account, email, or login required

✓Files never leave your device

✓No file size limits whatsoever

✓No watermarks on any output

Identify a File's Real Type

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

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