How much space does my Dropbox account have left?
The fastest way to check how much space you have left on your Dropbox is from your account menu on the Dropbox website:
Personal Dropbox: Check my available storage
Dropbox for Business: Check my available storage
If you've run out of space, consider upgrading.
Check remaining space on the Dropbox website
For our advanced users
Dropbox's performance may start to decline when you store above 300,000 files. At that point you may observe some slowness. We're currently working hard optimizing Dropbox to better handle accounts with unusually large numbers of files.