WebAssembly is emerging as a transformative technology for executing server-side languages directly in web browsers, which could reduce the need for remote calls and enhance processing efficiency. The technology offers a shift in where processing occurs, moving traditional server-side operations to the client-side, potentially leading to a new form of serverless computing. Despite its potential, WebAssembly is still evolving with limitations and security concerns reminiscent of past technologies like Adobe Flash and JAVA Applets. The LLVM support allows a wide range of languages, such as Go, Rust, and OCaml, to be utilized in WebAssembly, broadening its application scope. Tools like the Harness Platform facilitate the compilation and testing processes for WebAssembly, and as the technology matures, it promises to redefine the role of web browsers in application development.