Speaking of syncing local folder to Dropbox, you may think about the simplest way - using Dropbox folder on the desktop. In addition, Smart sync of Dropbox is an excellent choice, which can help you save hard drive space automatically via online-only option. You can also view these online files locally when your computer connect to network.Dropbox. Connect your Dropbox to hundreds of other services. Dropbox lets people bring their documents, photos and videos everywhere and share them easily. Use Applets to sync your Dropbox uploads with other services, quickly add new files, and keep track of all your important photos, documents, and data — automatically. Connect Dropbox is the most popular consumer online storage platform, now with over half a billion users in the system. Their primary client is the Dropbox desktop sync client, which mirrors a folder named Dropbox out to the cloud. It works great.