Umbraco is a fully-featured open source content management system with the flexibility to run anything from small campaign or brochure sites right through to complex applications for Fortune 500's and some of the largest media sites in the world. It is written in C# and deployed on Microsoft based infrastructure.Umbraco is easy to learn and use, making it perfect for web designers, developers and content creators alike. You can be up and running in just a few minutes with our simple installer. Either apply one of the included starter kits or seamlessly integrate your own design.

Umbraco is strongly supported by both an active and welcoming community of users around the world, and backed up by a rock-solid commercial organization providing professional support and tools. Umbraco can be used in its free, open-source format with the additional option of professional tools and support if required.

In 2010, with 1000 downloads a day, Umbraco was in the Top 5 most popular downloads via the Microsoft Web Platform Installer, two places below its main rival DotNetNuke and was the 12th most downloaded application from Codeplex, six places below DotNetNuke and 13 places higher than mojoPortal