Node.js is a First class back end run time environment for building Web Applications. It has a large number of ready-to-use tools and Vibrant Communities behind. Modern tools and easier way of developing complex applications makes Node.js stand out from the other programming languages.
Nodejs is an open-source, cross-platform javascript run time environment built on Chrome’s V8 javascript engine that is loved by most of the web developers to create real-time web applications. Nodejs development has the efficiency to increase the return on investment for many software development teams.
A development model that uses an event-driven, non-blocking I/O model which makes it more efficient and lightweight. The reason behind the popularity of node.js is that the developers can utilize javascript for both front end and back end.
It is a great fit for building numerous applications such as Enterprise web applications, social media apps, chatbots, real-time tracking apps, online games and much more.
Actually, Here is brief about what is Node.js, Features of Node.js, Use of Node.js in Big Brands >> Read Here