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Skip to main content Microsoft .NET .NET .NET Home About Learn Architecture Docs Downloads Community More LIVE TV All Microsoft Microsoft 365 Azure Office 365 Dynamics 365 Power Platform Windows 10 Products & Services Products & Services Windows Server Enterprise Mobility + Security Power BI Teams Visual Studio Microsoft Advertising Emerging Technologies Emerging Technologies AI Internet of Things Azure Cognitive Services Quantum Microsoft HoloLens Mixed Reality Developer & IT Developer & IT Docs Developer Center Windows Dev Center Windows IT Pro Center FastTrack Power Platform Partner Partner Partner Network Solution Providers Partner Center Cloud Hosting Industries Industries Education Financial services Government Health Manufacturing & resources Retail Other Other Security Licensing AppSource Azure Marketplace Events Research View Sitemap Home ASP.NET .NET Conf: Focus on Windows Did you miss the special .NET Conf all about modernizing Windows apps? Watch the sessions on demand. Watch on-demand × ASP.NET Free. Cross-platform. Open source. A framework for building web apps and services with .NET and C#. Get Started Download Supported on Windows, Linux, and macOS Web Apps Build full stack web apps with HTML, CSS, JavaScript, and C# APIs Develop REST APIs for a range of clients, including browsers and mobile devices Real-time Enable bi-directional communication between server and client, in real-time Microservices Create independently deployable microservices that run on Docker containers What is ASP.NET? .NET is a developer platform made up of tools, programming languages, and libraries for building many different types of applications. ASP.NET extends the .NET developer platform with tools and libraries specifically for building web apps. Dig deeper: What is ASP.NET? Learn ASP.NET Learn about all ASP.NET has to offer with our tutorials, video courses, and docs. Learn to use ASP.NET Fast and scalable ASP.NET performs faster than any popular web framework in the independent TechEmpower benchmarks . Data sourced from official tests available at TechEmpower Round 20 . Build secure apps ASP.NET supports industry standard authentication protocols. Built-in features help protect your apps against cross-site scripting (XSS) and cross-site request forgery (CSRF). ASP.NET provides a built-in user database with support for multi-factor authentication and external authentication with Google, Twitter, and more. Active community and open-source Get quick answers to questions with an active community of developers on Stack Overflow , ASP.NET forums , and more. NET is open source on GitHub, with over 100,000 contributions and 3,700 companies already contributing. Join the .NET community Free hosting on Azure Get 10 ASP.NET websites for free with Microsoft Azure. You can also deploy to any major cloud platform, your own Linux or Windows servers, or one of many hosting providers . Host for free with Azure Read customer stories Ready to Get Started? Our step-by-step tutorial will help you get ASP.NET running on your computer. Supported on Windows, Linux, and macOS Get Started Powered by .NET 5.0.4 Contact Microsoft Support Privacy & Cookies Terms of Use Trademarks © Microsoft 2021...