from：
http://en.wikipedia.org/wiki/File_synchronization
Open-source
name  | protocol | language | platforms | license | Lastest Version (as of Oct 2008) |
|---|---|---|---|---|---|
| Unison | similar to rsync; uses SSH as transport | OCaml | Windows, Linux, OS X, other Unix | GPL | 2.27.57 [20-Jan-2008] |
| JFileSync | file system | Java | Windows, Linux, OS X, other Unix | GPL | 2.2 [20-Jul-2007] |
| FreeFileSync | file system | C++ | Windows, Linux | GPL | 1.9 [25-Oct-2008] |
| WinSCP | (Secure) FTP | C++ | Windows | GPL | |
| PathSync | file system | C++ | Windows | GPL | |
| rsync | rsync | Unix | GPL | ||
| DirSync Pro | file system | Java | Windows, Linux, Mac OS X | GPL | 1.0b6 [2-Oct-2008] |
| FullSync | file system or FTP | Java | Windows | GPL2 | 0.9.1 [8-Mar-2005] |
| Conduit (generic framework) | Many | Python | Linux, Unix | GPL |
[edit]Freeware, closed-source
- Microsoft ActiveSync syncs mobile devices
- Microsoft Foldershare
- Microsoft Sync Framework syncs files, data and services
- Microsoft SyncToy
- Windows Mobile Device Center
- GoodSync (free version has trial period; after trial, features are limited)
- Allway Sync (only a limited number of files can be synchronized in the free version)
- SyncBack (older version is freeware, newer version is commercial)
- BestSync
- SyncMate (basic version is freeware, expert version is commercial)
- Gbridge Sync folders, Remote desktop, Live web browsing, etc. (Freeware)
[edit]Commercial
- Dropbox
- OpenDrive
- Robocopy
- Synchromagic
- PowerFolder
- SugarSync
- SynchroJet
- Synchronize It! 3
- Super Flexible File Synchronizer
- ViceVersa Pro 2
- SyncTogether OS X only
- ADCS
- Mobiliti
- Bamboo File Sync and Backup Software
- Migo Mobile Desktop
- Zsync
- DataSync 3.1
