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FMDiff is a standalone C++ application capable to compare FileMaker Pro files or files saved as Clone without the need of any further software.

FMDiff reads two files simultaneously and follows the file's internal structure. Whenever it discovers any deviation this will be reported. It stops when it encounters a structural error with an appropriate error message.

If your solution suddenly exhibits strange behavior, how do you find out what happened to the files? How much time would you have to invest to find out? Would it be possible at all?

With FMDiff the basic test is done within minutes. Simply compare your backup or "Good Clone" against the solution. You immediately learn whether anything has changed and where, either due to human, hardware, or software error.

FMDiff compares your current solution against a previous one and reports the differences. For the first time it is now possible to verify that the internal file structure (tables, fields, relations, etc.) is the same as at the time of delivery. This is especially important for sensitive areas like accounting or healthcare.

You are able to document the progress in development and unauthorized modifications by someone else.

You even may compare files in environments where the original configuration does not exist, like ODBC, JDBC, ESS, or devices (camera) are not connected.

FMDiff knows whether your FileMaker Pro files are still intact. While comparing it checks the file's structure to be "well-formed". The licensed version of FMDiff even performs additional tests for ascending IDs and correct block lengths. This is something that even the native FileMaker Recover command does not always straighten out, which may lead to subsequent malfunctions or crashes.