Node.js is an advanced, open-source, event-driven, input/output system built for sites which support real-time interaction. A few examples of such websites are online browser-based video game portals, web-based chat rooms or accommodation booking portals. The platform handles the info transmitted between the site and its users in tiny bits, which boosts the loading speed and the overall performance of the website noticeably. When a certain form with three boxes is expected to be filled out by a user, for instance, ordinarily all three boxes should be filled out and the entire content is then sent as one sizeable chunk of information to the server. With Node.js, the content of the first box is processed as soon as it is entered, before the user types anything in the second box. Therefore, a lot more information can be processed much faster and more efficiently compared to any conventional system, which can have an enormous influence on the overall performance of the website. Node.js is already being used by many of the largest IT firms such as Yahoo and Microsoft.