Native Script
NativeScript is an open source framework for building truly native mobile apps with JavaScript. Use web skills, like Angular and Vue.js, FlexBox and CSS, and get native UI and performance on iOS and Android.
Jquery UI
The official jQuery user interface library.
Onsen Ui
Custom Elements-Based HTML5 UI Framework for Building Your Mobile Front End
Device.js
Device.js makes it easy to write conditional CSS and/or JavaScript based on device operating system (iOS, Android, Blackberry, Windows, Firefox OS), orientation (Portrait vs. Landscape), and type (Tablet vs. Mobile).
Bootstrap Touchspin
A mobile and touch friendly input spinner component for Bootstrap 3.
Agile
Agile Css3 Engine
Drawer
A small CSS3 and jQuery plugin for app style drawer menu.
Media Check
Control JS with mediaqueries
Brick
UI Web Components for Mobile Web Apps
Restive.js
The Easiest Way to Make your Website Responsive or Adaptive!
jQuery Mobile
jQuery Mobile Framework
Responsible
Responsible.js - Give visitors the choice of what mobile experience they want. Adds Toggle for mobile to desktop switching without page reloads
QuoJs
Micro JavaScript library for mobile devices
iScroll
Smooth scrolling for the web
Dragend
dragend JS – a touch ready, full responsive, content swipe script
Naver
A jQuery plugin for responsive navigation.
jQuery UI Touch Punch
A duck punch for adding touch events to jQuery UI