ASPNET

ASP.NET is a web development framework from Microsoft, part of the .NET platform, for building web applications and services. Introduced in 2002 as part of the .NET Framework, it evolved from the older classic ASP technology into a modular, scalable framework for web programming.

With the release of ASP.NET Core in 2016, the framework was redesigned as a cross-platform, open-source framework that runs on Windows, Linux, and macOS, and forms the basis of modern .NET web development. ASP.NET Core emphasizes modularity, performance, and a unified platform for building web apps and APIs.

ASP.NET Core supports multiple programming models, including MVC (Model-View-Controller), Razor Pages, and Web API, as well as real-time capabilities via SignalR and interactive client UI via Blazor. The minimal APIs feature introduced in .NET 6 provides lightweight endpoints. Razor syntax is used for server-generated HTML. The architecture relies on a middleware pipeline and a built-in dependency injection container, with Kestrel as the cross-platform web server and optional hosting behind IIS, Nginx, or Apache.

Languages used for ASP.NET Core development are primarily C#, with support for F# and VB.NET on the broader .NET platform; however, most ASP.NET Core apps are written in C#. The framework places strong emphasis on security and tooling, offering features like integrated identity, authentication, authorization, OAuth and OpenID Connect support, and data protection. Development is supported by Visual Studio and Visual Studio Code, with deployment options including self-contained and framework-dependent deployments.

ASP.NET Core is widely used for enterprise web applications, RESTful APIs, and real-time or interactive web experiences. It benefits from a large ecosystem of libraries via NuGet, ongoing community contributions, and active support from Microsoft, ensuring compatibility with modern web standards and cloud workflows.