Is NodeJS a web server?

Node.js is a versatile, open-source runtime environment that leverages JavaScript to build server-side applications for multiple operating systems. It is rapidly gaining traction in the web development arena due to its scalability, speed and simple implementation. While Node.js does not act as a web server by itself, developers can take advantage of powerful tools like Express or Koa to create web servers with minimal code utilizing Node.js as the foundation.