Blazor, an open-source technology developed by Microsoft, leverages WebAssembly to enable .NET development directly in the browser, allowing applications to be built using C# instead of JavaScript while still utilizing JavaScript libraries and frontend concepts. Blazor comes in two production-ready versions: Blazor Server, which requires a server and uses SignalR for message passing, and Blazor WebAssembly, which compiles .NET code into a static bundle deployable like traditional frontend frameworks. The technology offers lifecycle hooks similar to JavaScript frameworks and supports interoperability with JavaScript, allowing developers to incorporate npm modules. Blazor applications are structured using components, and its deployment is compatible with Azure and other cloud providers. While Blazor provides a robust platform for teams with strong .NET backgrounds, it has a moderate learning curve and does not yet match the rapid prototyping capabilities of frameworks like Angular or React. However, Microsoft's extensive documentation and Visual Studio tools facilitate the development of complex applications.