Alfresco is Enterprise Content Management (ECM) software based on open source platform build for Windows, Linux and number of UNIX based operatingsystems. Alfresco is one of most powerful and flexible ECM software available in the market for free or at much lower cost compared to Microsoft SharePoint.

"Microsoft SharePoint is web content and document management software that can support multiple organizations on a single server. With SharePoint the enterprises can manage websites, intranets, extranets, documents and files, collaboration spaces, social networking and business intelligence tools etc. "