Node.js is an event-driven runtime environment, which uses the Google V8 JavaScript engine. It is used for scalable web apps that need live communication between a server and the worldwide web users and can noticeably speed up the overall performance of any website that’s using it. Node.js is designed to process HTTP requests and responses and incessantly delivers small bits of info. For instance, if a new user fills in a signup form, the moment any information is entered in one of the fields, it is forwarded to the server even if the remaining boxes are not filled and the user hasn’t clicked on any button, so the information is processed much faster. In comparison, conventional systems wait for the entire form to be filled and one big hunk of information is then delivered to the server. Regardless of how little the difference in the processing speed may be, things change in case the site expands and there are plenty of individuals using it simultaneously. Node.js can be used for booking sites, real-time browser-based video games or online chat software, for example, and plenty of companies, including eBay, Yahoo and LinkedIn, have already integrated it into their services.