Jexcel
jExcel | the javascript spreadsheet is a very light jquery plugin to add a excel compatible spreadsheet in your application or web based software. Create smarter apps including data tables, grid and spreasheets with this awesome jquery spreadsheet plugin. For live examples, please visit:
Gpu.js
GPU Accelerated JavaScript
Fine Uploader
Multiple file upload plugin with progress-bar, drag-and-drop.
Zxcvbn
zxcvbn, named after a crappy password, is a JavaScript password strength estimation library. Use it to implement a custom strength bar on a signup form near you!
Chai
BDD / TDD assertion framework for node.js and the browser that can be paired with any testing framework.
Editor
Next-gen, highly customizable content editor for the browser - based on React and Redux. WYSIWYG on steroids.
I18next
Internationalisation (i18n) with javascript the easy way (incl. jquery plugin)
Onsen Ui
Custom Elements-Based HTML5 UI Framework for Building Your Mobile Front End
Vivus
JavaScript library to make drawing animation on SVG
Riotjs
The 1kb client side MV* library
Knockout
Knockout makes it easier to create rich, responsive UIs with JavaScript
Pikaday
A refreshing JavaScript Datepicker — lightweight, no dependencies, modular CSS
Parallax
Parallax Engine that reacts to the orientation of a smart device
Watermelon Db
🍉 High-performance reactive database for powerful React and React Native apps ⚡️
Raphael
JavaScript Vector Library
Magnific Popup
Light and responsive lightbox plugin with focus on performance.
Popmotion
A 12kb Javascript motion engine. Use for animation, physics and input tracking.