Updated May 31, 2014
Dropbox Online Backup

Bottom line

Dropbox is a file synchronization service that has earned multiple Editors' Choice awards, and critics say it is one of the easiest backup services to use. Dropbox allows you to store files online and sync them across multiple computers, smartphones and tablets. While there's a lot of competition in this space (including Google Drive and Microsoft OneDrive), many reviewers prefer Dropbox over other syncing services.

Ease of use

Easy to use. Reviewers say Dropbox couldn't be easier to use -- you simply sign up, download the client and drag and drop files into a folder on your device. You can then access the files on linked computers, phones or tablets. You can also store the files locally instead of in the cloud, meaning you won't need an Internet connection to access them. Uploading and downloading are fast as long as you have a reliable connection. Reviewers love the robust sharing options, which include the ability to send files to others right from the Dropbox client or create read-only public folders. Invite your friends, family and teammates to any folder or file in your Dropbox (it requires them to sign up first), and it'll be as if you saved that data straight to their devices.

ProsExcellent file syncing, Compatible with Windows, Mac OS and Linux, Fast and easy to useConsCostlier than some competitors