Mixed state folders contain both local and online-only content.Only information about the file, such as the file name, location, and date the file was updated, is downloaded. In your file explorer, you can see the file, but the content isn’t fully downloaded until you need it. Online-only content shows in your local Dropbox folder, but doesn’t use the full amount of space that the file would.Dropbox Smart Syncĭropbox Smart Sync defines three states for files and folders: This saves valuable disk space and bandwidth while still being able to access every file from your computer. Instead, only the directory structure is replicated on your device and files are download on demand when you open them. Some cloud providers offer that not all files are automatically synced to your device.