ASP.NETMicrosoft's framework for building web applications and APIs on the .NET platform. Core runs on Linux and macOSApple's desktop operating system — runs on Mac hardware with Unix foundations and the Cocoa UI framework. with Kestrel, middlewareSoftware between applications and lower-level systems — handles integration, messaging, or shared services. pipelines, and dependency injection built in — `dotnet new webapi` scaffolds APIs without IIS. It unified MVC and Web APIApplication programming interface — a defined way for programs to talk to each other or to a service., enabling microservicesAn architecture splitting applications into small independent services — each deployed and scaled separately. and containerized .NET deployments outside Windows Server.

ASP.NETMicrosoft's framework for building web applications and APIs on the .NET platform. Core broke .NET web development out of Windows-only IIS deployments.

Cross-platform Kestrel and middlewareSoftware between applications and lower-level systems — handles integration, messaging, or shared services. pipelines defined modern .NET web architecture.