Tomcat is the core project of ApacheSoftwareFoundation Jakarta Project, which is jointly developed by Apache, Sun and other companies and individuals. Thanks to Sun's participation and support, the latest Servlet and JSP specifications can always be reflected in Tomcat.

. NET is a free open source development platform for building various applications. It can use many languages, such as editors and libraries to develop Web applications, WebAPI and microservices, serverless functions in the cloud, cloud native applications, mobile applications, desktop applications, WindowsWPF, Windows Forms, Universal Windows Platform (UWP) and so on.