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

Homepage - http://www.goodsync.com