Bittorrent Sync (Beta) is a new application that securely syncs folders across computers.

I first heard about Bittorrent Sync on Steve Gibson’s Security Now podcast last week on I immediately installed it on three of my machines and began setting up some folders to sync between all three computers. I figured that it would serve as another backup of my most important files and folders. Bittorrent Labs actually have quite a few applications that they have created and most of them seem to still be in a Beta stage. Bittorrent sync is the only application that I have tried so far and it has worked flawlessly. For those that don’t know what it does here is an explanation:

Bittorrent sync simply will make an exact duplicate of any folder that you tell it to sync, and send that folder to another computer. I installed the program on my two laptops that sit right next to each other, and chose a few folders that I want to keep backed up on both computers. It took just a few minutes for all the files on one computer to be securely sent to the other computer and replicated. Bittorrent Sync is using torrent technology to quickly transfer files safe and securely from one computer to another. You can also use it to merge two or more folders and convert them into duplicate folders including all the files in each of the folders chosen to sync.

The syncing technology used is very efficient and it works great to quickly sync folders securely. This technology is nothing new, since we have already used apps such as dropbox, skydrive, google drive, and microsoft’s Synctoy to sync files. However, this application is actually using bittorrent technology which none of the other applications named have used. The main reason I am using it is because it is secure. According to Bittorrent Sync FAQ…Can other BitTorrent users see my shared files?
No. BitTorrent Sync is based on BitTorrent protocol, but all the traffic is encrypted using a private key derived from the shared secret. Your files can be viewed and received only by the people with whom you share your private secret.