HexDump - Hex Viewer is a Chrome extension designed to display file contents in both hexadecimal and ASCII formats. As a versatile file inspection and analysis tool, it is useful for tasks like data recovery, reverse engineering, and programming. The extension also aids in identifying file types through magic numbers. Users can customize the display by defining the number of rows and columns shown.

Upon installation, users can access the extension by clicking the toolbar button and opening the interface. From there, they can double-click on the interface or drag and drop a file for analysis. The extension features three main segments: the current offset, hex view, and ASCII view, with a jump tool for easy navigation and the ability to load new files seamlessly. Notably, this tool operates offline without relying on remote services.