pkg : This command line interface enables you to package your Node.js project into an executable that can be run even on devices without Node.js installed.
PhantomJS : PhantomJS is a headless WebKit with JavaScript API. It has fast and native support for various web standards: DOM handling, CSS selector, JSON, Canvas...
Yarn : Fast, reliable, and secure dependency management tool for javascript.
Grunt is a task-based command line build tool for JavaScript projects
