Node.js is an open-source, event-driven runtime environment, which uses Google's V8 JavaScript Engine. It’s used by scalable web applications that need live communication between a web server and the Internet users and can substantially enhance the performance of any site that’s using it. Node.js is designed to handle HTTP requests and responses and incessantly delivers little amounts of info. For example, in case a new user fills out a subscription form, the moment any information is inserted in one of the boxes, it is sent to the server even if the rest of the boxes are not filled and the user has not clicked on any button, so the info is handled a lot faster. In contrast, conventional systems wait for the whole form to be filled and one huge hunk of information is then submitted to the server. Irrespective of how little the difference in the processing speed may be, things change in case the website expands and there’re a lot of individuals using it at the same time. Node.js can be used for booking portals, real-time web browser-based games or live chat systems, for example, and plenty of corporations, among them eBay, Yahoo and LinkedIn, have already incorporated it into their services.