SyncBreeze is a fast, powerful and reliable file synchronization solution for local disks, network shares, NAS storage devices and enterprise storage systems.
Wise Duplicate Finder is a duplicate file management tool that can help you find and delete duplicate files by comparing file name, file size or contents.
DSynchronize is a stand-alone utility that let you periodically synchronize two or more folders on Hard Disk, Floppy Disk, LAN, USB Key, CD-DVD and FTP server.