GoodSync2Go is a handy and portable tool that uses an innovative synchronization algorithm to synchronize your data between desktop PCs, USB drives, laptops and more.

GoodSync combines bulletproof reliability with an extremely easy-to-use interface.

Easy to Use Windows Interface 
Do routine multiple folder synchronizations with one click. 
Automatic, on-screen, context sensitive hints. 
Minimal questions asked before file sync starts. 
Multilingual user interface with localized file names support

Performs real all-way file and folder synchronization 
File modifications and deletions are stored in a database. 
The innovative algorithm does not rely on file system precision or accuracy. 
Actual folder (directory) synchronization. 
Virtually any file system is supported

Can be used in various scenarios 
Sync data between your desktop PC and laptop (notebook). 
Update and backup files over a local network or the Internet. 
Synchronize more than 2 directories. 
Do data replication and backup between home and work computers. 
Synchronize a removable (USB key, flash drive, CDRW) device with a local drive. You will combine the performance of local file devices with the absolute mobility of a removable drive. And don't be so afraid of losing your USB key or even of your hard drive crashing: be at ease, knowing you have kept a copy of your most important data

Limitations:

· 30 days trial period
· After 30 days the free version allows up to 3 jobs and 100 files to be routinely backed up or synchronized.