Enquire.js
Awesome Media Queries in JavaScript
D3 Cloud
Create word clouds in JavaScript.
Angular Formly
JavaScript powered forms for AngularJS
Inputex
A javascript framework for YUI to build fields and forms.
Tether
A positioning engine to make overlays, tooltips and dropdowns better #hubspot-open-source
JSON.js
JSON in JavaScript
Hello.js
A Javascript RESTFUL API library for connecting with OAuth2 services, such as Google+ API, Facebook Graph and Windows Live Connect
Easel JS
The Easel Javascript library provides a full, hierarchical display list, a core interaction model, and helper classes to make working with the HTML5 Canvas element much easier.
Bootstrap Calendar
Full view calendar with year, month, week and day views based on templates with Twitter Bootstrap.
Tabulous.js
A jQuery tabs module for todays web!
String Score
JavaScript string ranking 0 for no match upto 1 for perfect... "String".score("str"); //=> 0.825
Flowtime.js
Flowtime.js HTML5/CSS3/JS Presentation Framework
Baffle
A tiny javascript library for obfuscating and revealing text in DOM elements. :astonished:
Vague Time
A tiny JavaScript library that formats precise time differences as a vague/fuzzy time, e.g. '3 months ago', 'just now' or 'in 2 hours'.
Img to Ascii
A JavaScript implementation of a image to Ascii code
Angular History
A history service for AngularJS. Undo/redo, that sort of thing. Has nothing to do with the "back" button, unless you want it to.
Vue Js Modal
:pizza: Simple to use, highly customizable, mobile friendly Vue.js 2.0+ modal.