Here’s a concise social post you can use:
Move through both files simultaneously to easily spot discrepancies. Large File Support: Handles files up to Built-in Hex Editor: Modify files directly within the comparison interface. Info Panel:
Given the lack of detailed information, a deep review would involve:
If the thread is recent, you might also find complaints about Windows 10/11 compatibility. Fairdell HexCmp is an older Win32 application. To run it on modern Windows, you may need to: Fairdell HexCmp full - MHH AUTO - Page 1
It attempts to recognize common data types (integers, floats, ASCII strings) within the binary. When working with Motorola S-records or Intel HEX files from ECUs, this feature helps identify maps, VIN locations, and checksum regions without external plugins.
While the query points towards finding this on MHH AUTO, the official and most up-to-date versions of are available directly from the Fairdell website .
If you are looking for specific tutorials on how to use HexCmp for ECU file comparison, I can provide those or point you to related ECU remapping software. Here’s a concise social post you can use:
Fairdell HexCmp is a specialized tool used by automotive technicians for comparing binary files to identify differences in ECU software, tuning maps, and immobilizer data. The application features a side-by-side view with byte-level highlighting, allowing users to modify hexadecimal values directly, often within discussions on platforms like MHH AUTO to troubleshoot ECU clones or firmware issues. Share public link
Step-by-step instructions to configure the tool on modern operating systems like Windows 10 or Windows 11.
The "full" version handles files up to 4GB+ without crashing. Modern ECUs (Bosch EDC17, MED17, Simos) have large flash dumps; HexCmp handles them smoothly. Fairdell HexCmp is an older Win32 application
To understand why MHH AUTO is the top result for this search, you must understand the ecosystem. is the largest international forum dedicated to automotive electronics, programming, and ECU (Engine Control Unit) tuning.
Fairdell HexCmp is a specialized visual binary file comparison utility and editor frequently utilized in automotive ECU remapping and software development to compare raw files and highlight differences. The full version, often discussed on forums like MHH AUTO, provides unrestricted access to features such as editing and comparing large files up to 4 GB. For more information, visit the MHH AUTO forum. Share public link
If you are looking to download or discuss this tool on the MHH AUTO forum, ensure you are utilizing the search function to locate the latest version on page 1.