The Web and browser ecosystem is the most powerful and universal platform available today. The combination of HTML, CSS and JavaScript have been the three key ingredients since the 1990's. That being said, the demands of modern web experiences have pushed these technologies to their limits. WebAssembly has emerged as the new kid on the block, offering superior performance, security, and portability. In this session you will learn about the history of WebAssembly and how it is being positioned as the 4th official language of the web. You will also get some exposure to Blazor WebAssembly, Microsoft's powerful new framework for building interactive web UIs using C# instead of JavaScript.