IceBuddha

IceBuddha is a hex viewer and binary file parser built to run in a web browser. You drop a file onto the page, and it shows you the raw hexadecimal data alongside a structured breakdown of the file's internal format. It currently understands common structures within Windows PE files (like .exe and .dll), GIF images, and macOS Mach-O files. The key point is that all this analysis happens locally on your machine; the file never leaves your browser, which is a major plus for privacy and security.

The tool works by using small Python scripts that define how to interpret the bytes of a file. These scripts are converted to JavaScript in real-time via the Skulpt library. If you switch to the 'Parse as' tab, you can see and even edit this Python code. Any changes you make are applied immediately, letting you experiment with parsing logic without any server round-trip. This makes IceBuddha both a useful inspection tool and an educational platform for understanding binary file formats.

It's most useful for developers, security analysts, or students who need to peek inside binary files. Whether you're verifying a file's structure, writing a custom parser, or just curious about how executable headers work, IceBuddha provides a lightweight, private way to do it directly from your browser. Since it's open-source and hosted on GitHub Pages, you can also clone the project and run it entirely offline.