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FreeFormatHub
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Binary/Hex Viewer

Advanced binary and hexadecimal file viewer with format detection, structure analysis, and customizable display options.

Quick Examples

File Upload

Display Info

Current View
Offset: 0 | Max: 2048 bytes | Line: 16 bytes
Format Features
📍 Addresses 📝 ASCII 🔤 Uppercase 🎨 Colors

Binary/Hex Data Input

Syntax: text

Output

Output will appear here

How It Works

Input Your Data

Paste, type, or upload your data directly into the binary/hex viewer. All processing happens locally in your browser for complete privacy and security.

Configure Options

Customize the tool settings to match your specific needs. Real-time processing with instant validation and error detection.

Process Instantly

Click the process button or enable auto-processing for real-time results. Lightning-fast performance with immediate feedback and validation.

Export Results

Copy results to clipboard, download as files, or share with others. Multiple export formats available for maximum compatibility.

Frequently Asked Questions

What file formats can the viewer detect?
Detects common formats including PNG, JPEG, GIF, PDF, ZIP, EXE, ELF, Java class files, and many archive formats based on magic numbers and file signatures.
How does file structure analysis work?
The tool parses known file formats (like PNG chunks or JPEG markers) to show the internal structure, helping understand how the file is organized.
What is entropy analysis and why is it useful?
Entropy measures randomness in data (0-8 bits). High entropy suggests encrypted/compressed data, while low entropy indicates structured or repetitive content.
Can I view large files without performance issues?
Yes, the tool limits display to a configurable number of bytes (default 64KB) and supports offset viewing to inspect specific file sections efficiently.
How do I interpret the different display modes?
Hex shows bytes as hexadecimal, binary shows bits, ASCII shows printable characters. Combined mode shows all three for comprehensive analysis.

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