SharpDevelop is the
open-source IDE for the .NET platform. Write applications in languages
including C#, VB.NET, F#, IronPython and IronRuby, as well as target
rich and reach: Windows Forms or WPF, as well as ASP.NET MVC and WCF. It
starts from USB drives, supports read-only projects, comes with
integrated unit and performance testing tools, Git, NuGet and a lot more
features that make you productive as a developer.