Smart Sync is a feature of the Dropbox desktop app that makes files online-only so you can save hard drive space on your computer. You can choose which files to make online-only or let automatic Smart Sync choose for you.
Note: The Smart Sync settings you choose are unique to each computer and don’t affect other computers you use with Dropbox.
Set a file or folder to online-only or local
To set a file or folder to online-only using Smart Sync:
- Open File Explorer (Windows) or Finder (Mac).
- Open the Dropbox folder.
- Right-click the file or folder you’d like to change to online-only.
- Hover over Smart Sync.
- Click Online Only. If you’d like to save your file back to your computer’s hard drive again, click Local.
This article was originally published here.