There's a lot of confusion about Node.js, NPM and Angular. These 3 "entities" are often used together, especially for Angular applications, but they are not the same thing. Let's make it clear! Node.js Node.js is a based on JavaScript. You can download it from the and run it on Windows, Linux, Mac, etc. server environment official site : while a typical server handles one request per time (thus creating overhead while waiting for the request completion), Node.js accepts all the requests and handles them one by one in a manner that does not block other requests. This is obviously very efficient. Node.js uses asynchronous programming NPM is the package manager for Node.js packages. It contains thousands of free packages available to download; also, using the command line, it's easy to download and update those packages. NPM NPM is commonly used with Node.js, so it is installed with the server environment. The way to install a package is with the command . npm install <package_name> Angular Angular is a framework based on JavaScript that makes it easy to build applications for the web. Often you'll see Angular applications written in Typescript, a modern class-oriented language based on JavaScript. The result is the same: Typescript is compiled into JavaScript, so they are interchangeable. Well, at least the latest versions of JS, because types and decorators are required in order to, respectively, use and set metadata. dependency injection Being based on JavaScript - guess what? - it fits perfectly with Node.js. And of course, NPM, which allows you to download JavaScript packages to include in the project. Wrapping up Now we know what Node.js, NPM, and Angular are, and how they fit together. Node.js is just the server that handles the requests from the web page; these pages can call web APIs from whatever kind of server, and of course look up to data in any type of DB.