text: Published Apr 13, 2016Last updated Jan 18, 2017
  Its runtime environment interprets JavaScript using Google's V8 JavaScript engine. Node.js has an event-driven architecture capable of asynchronous I/O that makes it lightweight and efficient. Node.js' package ecosystem, npm, is the largest ecosystem of open source libraries in the world.
  Async: Async is a utility module which provides straight-forward, powerful functions for working with asynchronous JavaScript.
  Browserify: Browserify will recursively analyze all the require() calls in your app in order to build a bundle you can serve up to the browser in a single <script> tag.
  Bower: Bower is a package manager for the web. It works by fetching and installing packages from all over, taking care of hunting, finding, downloading, and saving the stuff you're looking for.
  Backbone: Backbone.js gives structure to web applications by providing models with key-value binding and custom events, collections with a rich API of enumerable functions, views with declarative event handling, and connects it all to your existing API over a RESTful JSON interface.
  Csv: csv module has four sub modules which provides CSV generation, parsing, transformation and serialization for Node.js.
  Debug: Debug is a tiny node.js debugging utility modelled after node core's debugging technique.
  Express: Express is a fast, un-opinionated, minimalist web framework. It provides small, robust tooling for HTTP servers, making it a great solution for single page applications, web sites, hybrids, or public HTTP APIs.
  Forever: A simple CLI tool for ensuring that a given node script runs continuously (i.e. forever).
  G: Grunt and Gulp do exactly the same thing. Grunt has been around longer than Gulp.
  Grunt: is a JavaScript Task Runner that facilitates creating new projects and makes performing repetitive but necessary tasks such as linting, unit testing, concatenating and minifying files (among other things) trivial.
  Gulp: is a streaming build system that helps you automate painful or time-consuming tasks in your development workflow.
  Hapi: is a streaming build system that helps you automate painful or time-consuming tasks in your development workflow.
  Http-server: is a simple, zero-configuration command-line http server. It is powerful enough for production usage, but it's simple and hackable enough to be used for testing, local development, and learning.
  Inquirer: A collection of common interactive command line user interfaces.
  Jshint : Static analysis tool to detect errors and potential problems in JavaScript code and to enforce your team's coding conventions.
  Koa: Koa is web app framework. It is an expressive HTTP middleware for node.js to make web applications and APIs more enjoyable to write.
  Lodash: The lodash library exported as a node module. Lodash is a modern JavaScript utility library delivering modularity, performance, & extras.
  Less: The less library exported as a node module.
  Mongoose: It is a MongoDB object modeling tool designed to work in an asynchronous environment.
  MongoDB: The official MongoDB driver for Node.js. It provides a high-level API on top of mongodb-core that is meant for end users.
  Npm: is package manager for javascript.
  Nodemon: It is a simple monitor script for use during development of a node.js app, It will watch the files in the directory in which nodemon was started, and if any files change, nodemon will automatically restart your node application.
  Nodemailer: This module enables e-mail sending from a Node.js applications.
  Optimist: is a node.js library for option parsing with an argv hash.
  Phantomjs: An NPM installer for PhantomJS, headless webkit with JS API. It has fast and native support for various web standards: DOM handling, CSS selector, JSON, Canvas, and SVG.
  Passport: A simple, unobtrusive authentication middleware for Node.js. Passport uses the strategies to authenticate requests. Strategies can range from verifying username and password credentials or authentication using OAuth or OpenID.
  Q: Q is a library for promises. A promise is an object that represents the return value or the thrown exception that the function may eventually provide.
  Request: Request is Simplified HTTP request client make it possible to make http calls. It supports HTTPS and follows redirects by default.
  Socket.io: Its a node.js realtime framework server.
  Through: It enables simplified stream construction. It is easy way to create a stream that is both readable and writable.
  Underscore: Underscore.js is a utility-belt library for JavaScript that provides support for the usual functional suspects (each, map, reduce, filter...) without extending any core JavaScript objects.
  Validator: A nodejs module for a library of string validators and sanitizers.
  Ws: A simple to use, blazing fast and thoroughly tested websocket client, server and console for node.js