Node.js is an event-driven runtime environment built with the Google V8 JavaScript engine. It’s used by scalable apps that require live interaction between a server and the Internet users and can significantly improve the performance of any website that uses it. Node.js is designed to handle HTTP web requests and responses and ceaselessly provides little amounts of information. For example, in case a new user fills in a registration form, the second any info is inserted in one of the fields, it is submitted to the server even if the other fields are not filled and the user has not clicked any button, so the information is processed a whole lot faster. In contrast, conventional platforms wait for the whole form to be filled out and one huge chunk of information is then delivered to the server. Regardless of how small the difference in the information processing speed may be, circumstances change when the site expands and there are a lot of individuals using it simultaneously. Node.js can be used for online booking portals, interactive browser-based games or online chat software, for instance, and lots of corporations, among them eBay, LinkedIn and Yahoo, have already integrated it into their services.