Explained Store and sync in the cloud
Use iCloud
When you fully utilize iCloud, your data is instantly available on any of your Macs or devices — no more half-finished files scattered across multiple computers. This can be a huge time-saver and help you work more efficiently.
Share folders
In iCloud Drive’s options, you can choose to store your entire Desktop and Documents folders online. Files in these folders then sync across Macs signed into your Apple ID, and are available on iOS devices too.
Sync Safari on devices
When using iCloud across your devices, you can view a list of Safari tabs from any device. Bookmarks and your browsing history sync, too. Turn on iCloud Keychain to sync logins and payment details.
Optimize photos
If you’re a keen photographer, consider storing all your photos and videos in iCloud. Then, even your edits become available on all your devices — and your Mac will download originals only when there’s space to do so.
Use Google Drive
Google Drive gives you 15GB of online storage for free. With Google’s Backup and Sync app, you can integrate Google Drive into Finder to access your Google Docs, and also sync specific folders for online backup.
Check out Dropbox
Dropbox offers only 2GB for free, but has very widespread support in apps across all platforms. You can selectively sync, too, which makes it suitable for use as an online-only locker for files you’re currently working on.