Windows Server Essentials is described as '(formerly Windows Small Business Server) is a flexible, affordable, and easy-to-use server solution designed and priced for small businesses with up to 25 users and 50 devices' and is an app in the system & hardware category. There are more than 10 alternatives to Windows Server Essentials for a variety of platforms, including Linux, Windows, Web-based, Self-Hosted and Kubernetes apps. The best Windows Server Essentials alternative is Zentyal. It's not free, so if you're looking for a free alternative, you could try ClearOS or Univention Corporate Server (UCS). Other great apps like Windows Server Essentials are Amahi Home Server, Windows Server 2012, SME Server and MDaemon Messaging Server.