New version! - Put your files into your Dropbox on one computer, and they'll be instantly available on any of your other computers that you've installed Dropbox on (Windows, Mac, and Linux too!) Because a copy of your files are stored on Dropbox's secure servers, you can also access them from any computer or mobile device using the Dropbox website.
Let's say you're editing a document at home. As soon as you click 'Save', Dropbox will sync this same file to all your other computers (and now your iPhone!) instantly and automatically. It's as if you saved the document to all of your computers. This gives you the freedom to work on any of your computers and always have the files you need.
You can easily share entire folders or photo albums with Dropbox. Simply put the folders you want to share in your Dropbox, and invite people to them. You can also send people links to specific files within your Dropbox. This makes Dropbox perfect for team projects.
Any file you put into your Dropbox folder is automatically backed up to our servers. Even if your computer has a melt-down, your files are safe on Dropbox and can be restored at any time. While our free 2GB account is perfect for backing up your documents, we offer larger accounts (up to 100GB) for backing up your music and video collections.
Every time you save a file in Dropbox, Dropbox syncs it to our secure servers. Dropbox keeps a history of every change you make so that you can undo any mistakes and even undelete files. By default, we keep 30 days of history for all your files. We also have an unlimited undo option called "Pack-rat".