ASP.NET

Cross-platform web framework extending the .NET developer platform with tools and libraries for building web applications, REST APIs, and real-time services. Runs on Windows, Mac, and Linux with a unified stack for full-stack development.

ASP.NET Core powers sites such as Stack Overflow, GE Aviation, nopCommerce, Geocaching, and Burn Rate. It consistently performs well in independent web framework benchmarks. The project is open source with wide industry contributions and an active community on Stack Overflow, Microsoft Q&A, and GitHub. Compared to Node.js or Java web frameworks, it offers Blazor for full-stack C# web UIs, built-in real-time with SignalR, and strong integration with the .NET ecosystem.

Key capabilities:

• Blazor for full-stack web apps with C#, HTML, and CSS in one stack
• REST API support for browsers, mobile clients, and microservices
• SignalR for bi-directional real-time communication
• Built-in authentication with MFA and external providers such as Google
• XSS and CSRF protection, industry-standard auth protocols
• Deployment on Linux, Windows, macOS, and major cloud platforms

Teams use it for enterprise web applications, internal tools, public APIs, and real-time collaboration or dashboards. It fits into existing .NET workflows with Entity Framework for data access, Visual Studio and VS Code support, and deployment options across cloud providers and self-hosted servers.