Highlighter.js
Easily navigate the DOM and highlight the elements - http://720kb.github.io/highlighter.js/
Currency Formatter.js
A super simple currency formatting library
Sketchpad
A simple sketchpad library
jQuery Resizable Columns
Resizable table columns for jQuery.
jQuery Easy Tabs
Easy and flexible jQuery tabbed functionality without all the styling.
Hint.css
A tooltip library in CSS for your lovely websites.
Metismenu
A jQuery menu plugin
Material Design Lite
Material Design Components in HTML/CSS/JS
Sweetalert
A beautiful replacement for JavaScript's "alert"
Custombox
Modal Window Effects with transitions CSS3.
J Query Context Menu
jQuery contextMenu plugin & polyfill
Jump.js
A small, modern, dependency-free smooth scrolling library.
Grommet
a react-based framework that provides accessibility, modularity, responsiveness, and theming in a tidy package
jQuery Tourbus
A jQuery tour/walkthrough plugin.
Uptodate
Keep your timestamps up to date
Bootstro.js
Tiny JS library using bootstrap's popovers to help guide your users around your website
Backbone.notifier
Notifications framework for Backbone.js