Introduction - If you have any usage issues, please Google them yourself
FreeFileSync is an easy to use open source software folder synchronization and comparison, easy to use. FreeFileSync [1] The first is file synchronization, you can specify the folder between the two one-way or two-way synchronization, click the program icon in the window at the top right of the green gear can set parameters period can also be customized to sift through the file, the " include" and " exceptional" two filtering methods, definitions need to filter the file types, which depends on personal needs.