Express js is the development part of web application. It also helps us to create an MVC application. It acts as server-side programming. Express Js is acting as a middleware it accepts the HTTP request and sends the response to the desired page. It helps to build software on server side along with node js.
Angular js is the front end framework for developing User Interface. It is maintained by Google. Angular user TypeScript for getting workflow.
Node Js is built on Linux. It uses Google v8 Engine. It is based on even Driven Architecture that runs on a single thread.