FCU is an utility for comparing files and directories. The compared fieles are shown in two windows side by side. In a third window the composed (merged) file is shown. An easy user interface is provided for inserting or removing different sections from the left or right file. Directory and subdirectory comparision is possible as well. Customizable accelerator keys, toolbars and user tools are a great help for adjusting the user interface.

SyncFolder is the visual file comparison/merging and folder synchronization application.

A must have for those who often deals with identifying files that have been changed.
New IsEqual will help you to quickly identify differences between files even with multitude of new features. IsEqual will do it in the most informative way - visual. Those parts that have been added or removed will be marked in different colors.
IsEqual will satisfy all your file compare and file merge tasks.

FolderMatch makes it quick and easy to compare and synchronize the contents
of any two files or folders. Whether you're trying to keep files and folders organized on a desktop computer, performing backups to removable disks, synchronizing rapidly changing laptop data with your main computer, or doing network file maintenance, FolderMatch offers one-button synchronization for the novice, and a range of sophisticated tools for the advanced user.