gridstack.js is a jQuery plugin for widget layout. This is drag-and-drop multi-column grid. It allows you to build draggable responsive bootstrap v3 friendly layouts. It also works great with knockout.js, angular.js and touch devices.  Demo  Demo

Scratch.js is a standalone library with no external dependencies which brings interactivity to your website by allowing you to generate scratch cards for your visitors.
Based on HTML5, scratch.js generate canvas on the fly and is optimized for all modern browsers and has touch support for mobile devices. You can use it to make scratch cards, coupons, promotionnal game and even advertisement.

Cross-browser fullscreen HTML elements (with jQuery support)  Demo

Scrollspy, animated scrollTo and scroll events for angular.js  Demo

Learn about the new F# 4.1 features. 

Scoop Navigation Menu Consist of both Horizontal and Vertical navigation with customize options and themes. Its lightweight and compatible with almost all major browsers and devices. this plugin make more then 50 plus navigation view. It supports four levels sub menu with shrink, Overlay and push effect.

Style and Component Library for Angular 2 and beyond!  Demo

jQuery extension for intergrating photoswipe with slick  Demo

JavaScript image gallery for mobile and desktop, modular, framework independent  Demo