Storage space vs. number of files
The performance of the Dropbox desktop app can start to decline after syncing around 300,000 files. This is a soft limit and depends on your computer's hardware. Some customers may not experience issues even beyond this number.
However, we strongly recommend not exceeding 1 million files on a single computer. This limit is based on the number of files, not their total size.
If you notice syncing issues:
- Use selective sync to sync only specific files to your computer. The rest of your files will still be available on dropbox.com and other linked devices.
- Adjust your bandwidth settings to help Dropbox sync more efficiently.