NodeJS is a popular platform developed and supported by the OpenJS foundation. It provides features beneficial in streamlined, fast, and high scalable applications.
ExpressJS is an open-source web application framework that allows you for better web applications and flexible API integration. It is a project under the OpenJS Foundation ( and is usually the de facto standard server framework for Node.js.
HapiJS is a newer open-source web application framework that abstracts NodeJS. It enables programmers to swiftly build functional web services such as application programming interface (API) servers, websites, and HTTP proxy applications.