DevToolKit

Professional Hex Dump Viewer

View and analyze binary files with our virtualized hex dump viewer. Includes real-time data inspector, endianness toggle, and deep byte color-coding. Private & local.

Drop files here or click to browse

View any file as a hex dump. Optimized for large files up to 2GB.
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How to Use

The Professional Hex Dump Viewer is a low-level data analysis tool that allows you to inspect the raw binary contents of any file.

How to use this tool

  1. Upload File: Drag and drop any file (executables, images, database files, etc.) into the dropzone.
  2. Scroll & Explore: Use the virtualized scroll container to browse through the file. The left column shows the memory offset, the middle section shows hex bytes, and the right shows ASCII characters.
  3. Select Byte: Click on any hex byte or ASCII character to select it. The corresponding pair will be highlighted automatically.
  4. Inspect Data: Look at the Data Inspector panel on the right. It instantly interprets the selected byte (and the following 7 bytes) into common data types like Integers, Floats, and Timestamps.
  5. Toggle Endianness: Switch between Little Endian and Big Endian to see how the numeric values change.

About This Tool

Why use a Hex Viewer?

Binary files are often opaque to standard text editors. A hex viewer reveals the underlying structure of a file, allowing you to identify "magic bytes" (file headers), hidden metadata, or corrupted data segments.

Our viewer is built for performance. By using a virtualized rendering engine, we only load the bytes currently visible on your screen. This means you can open a 500MB file as quickly as a 5KB file, all without crashing your browser or using excessive RAM.

Why Use This Tool

Privacy & Security Focus

Analyzing binary files can often involve sensitive data like firmware, memory dumps, or proprietary formats. Unlike other online hex viewers that upload your data to their cloud, our tool runs **100% locally in your browser**. Your files never leave your machine, ensuring complete data sovereignty and privacy.

FAQ

What is a hex dump?
A hex dump displays the contents of a file in hexadecimal (base 16) format, byte by byte. Each byte is represented as two hex digits (00 to FF). Alongside the hex values, the ASCII representation of printable bytes is shown. It is the standard way to inspect binary files for analysis, debugging, and digital forensics.
What is the data inspector?
The data inspector shows the selected byte interpreted in multiple formats simultaneously: unsigned decimal, signed decimal, hexadecimal, octal, binary, and as an ASCII character. For multi-byte selections, it shows 16-bit, 32-bit, and 64-bit interpretations in both endianness modes.
What does the color coding mean?
Bytes are colored by type: null bytes (00) are highlighted in one color, printable ASCII bytes in another, control bytes in another, and high-value bytes in yet another. This lets you quickly identify file structure and locate text sections, binary data, and padding.
Is my file uploaded to any server?
No. All processing happens entirely in your browser. The tool uses virtualization to display only the visible rows, allowing it to handle large files without loading everything into memory. Your files never leave your device.
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