DotNetNuke was designed to easily fit in to existing computing environments. The core framework includes a series of open APIs that make integration with existing applications simple and straightforward- ensuring businesses can focus on extending features and functionality rather than troubleshooting installations. DotNetNuke comes with over 25 free modules (modular pieces of code with specific functionality). These modules can be easily added, edited, deleted, restored, moved or transferred among pages, and include features like banners, discussion, FAQs, Searches, Weblogs and XML/XSL.

Because DotNetNuke is standards-based and open source, the core technology can easily be extended through a variety of add-on modules available from third-party vendors in the DotNetNuke Marketplace and users within the community.