What is Visual Studio Online?
Visual Studio Online, based on the capabilities of Team Foundation Server with additional cloud services, is the online home for your development projects. Get up and running in minutes on our cloud infrastructure without having to install or configure a single server. Visual Studio Online connects to Visual Studio, Eclipse, Xcode, and other Git clients to support development for a variety of platforms and languages.
Each Visual Studio Online account comes with five free users. As your team expands or your needs grow, mix and match user plans and resources to give each user what they need. Visual Studio with MSDN subscribers are free to join account projects exclusive of the included five free users.