Node.js is a special tool that runs JavaScript on servers and is ideal for microservices and API development. With its helper tool, it can easily install and manage extra programs. It can also work well with MongoDB to make programs more efficient. Node.js can work on different computers such as Windows or Mac and allows for handling heavy traffic and real-time applications efficiently. Also, it enables developers to use JavaScript on both the front-end and back-end, streamlining development.