EaseUS EverySync
$29.95 Free!
EaseUS EverySync is a highly intuitive tool for synchronizing files and folders between local, network, and removable drives and even Google Drive, OneDrive and Dropbox online cloud storage accounts. Apart from full sync mode, it allows one-way synchronization, either from the source to the target location or vice versa.
FileMenu Tools
$9.99 Free!
FileMenu Tools has more than 30 built-in utilities to perform any operation on files and folders that you can imagine (move/copy files to another folder, sync folders, batch renaming, copy path/name to clipboard, shred files, view size of folders, split files, generate checksums, and much more). And if the built-in commands don’t cover your needs, then you can add custom commands, submenus and separators to completely customize the context menu. You have total control to customize the custom commands like menu text, icon, element types, modifier keys, arguments, working folder, multiple instances, administrative mode, etc.
Doppelganger
$14.95 $7.47
Doppelganger lets you find and eliminate duplicate files, freeing up valuable disk space and reducing backup times. With Doppelganger, you’ll be able to find duplicate files even if they have different file names, a feat not easily accomplished by other duplicate-finder applications. It doesn’t even matter if you’re a neat freak or a total slob when it comes to file organization – Doppelganger has the ability to scan multiple computers, drives, and folders, including external devices such as digital cameras and MP3 players! Foreign characters in your file names? Not a problem! And if you’ve ever accidentally deleted a necessary hidden or system file, don’t worry – Doppelganger is designed not to do that!