Express.js

Express.js is a light-weight web application framework to help organize your web application into an MVC architecture on the server side. You can use a variety of choices for your templating language (like EJS, Jade, and Dust.js).

Express is a web application framework for Node.js :it can create deep web application in node.js without Express but using express give you some added advantages such as rapid application development and the routing features

Free and open-source software: for the server-side coding we don't have to pay anything. It can customize it as per the requirements.

Licensed under MIT: that is Messages at Institute of Technology

Features in Express.js

• Facilitates the rapid development 
• Allow to set up middleware to respond to HTTP requests.
• Defines a routing table
• Allows to dynamically render HTML pages.