HexCmp is a simple-to-use program which allows you to compare the hexadecimal code of two files and to view the differences in a graphical representation.
The interface of the software tool is plain and simple to navigate through. So, you can get started by opening each file by using the file browser ('drag and drop' is not supported).
In the graphical representation, all values which do not correspond in both files are highlighted in red. So, you can click any value's position in the hex code, in order to find out useful information, such as the hexadecimal and decimal value, corresponding character, bit set, and DWord.
Furthermore, you can save the differences to a separate file for analysis, use the undo, redo and search functions (e.g. first or previous entry), swap files, and shift the current position to left or right. But you can also customize the toolbars, colors and font (name and size), as well as switch to a different language for the UI. Settings may be restored to their default values.
The utility runs on a very low amount of CPU and system memory, has a good response time, supports keyboard shortcuts, and includes user documentation. We have not encountered any issues during our tests; HexCmp did not freeze, crash or pop up error dialogs. Thanks to its intuitive layout and overall simplicity, the app's features may be easily figured out. No recent updates have been made.