A better way for new feature introduction and step-by-step users guide for your website and project.
     Intro.js | Better introductions for websites and features with a step-by-step guide for your projects. intro.js - better introductions for websites and features with a step-by-step guide for your projects.
                 
            
                
                
                A tool for creating and composing asynchronous promises in JavaScript
     kriskowal/q
                 
            
                
                
                DOM-less simple JavaScript testing framework
     Jasmine: Behavior-Driven JavaScript
                 
            
                
                
                Production process manager for Node.js / io.js applications. Perfectly fitted for microservices architecture.
     PM2 - Advanced Node.js process manager advanced process manager for production node.js applications. load balancer, logs facility, startup script, micro service management, at a glance.
                 
            
                
                
                JavaScript image gallery for mobile and desktop, modular, framework independent
     PhotoSwipe: Responsive JavaScript Image Gallery touch-friendly javascript image gallery for mobile and desktop, without dependencies. responsive layout. swipe and zoom gestures.
                 
            
                
                
                Babel is a compiler for writing next generation JavaScript.
     Babel ยท The compiler for writing next generation JavaScript the compiler for writing next generation javascript
                 
            
                
                
                Jade - robust, elegant, feature rich template engine for Node.js
     Jade - Template Engine
                 
            
                
            
                
                
                Accelerated JavaScript animation.
     Velocity.js velocity.js: an incredibly fast animation engine for motion designers.
                 
            
                
                
                Super fast HTML 5 2D rendering engine that uses webGL with canvas fallback