Mag.js
MagJS - Modular Application Glue
Minified.js
Replace jQuery or MooTools with a <4kB Library
Fragment.js
A tiny tool for easily loading html fragments and templates
Mootools Core
MooTools Core Repository
Ac Colors
ac-colors is a reactive JavaScript color library that can freely convert between RGB, HSL, HEX, XYZ, LAB, LCHab, LUV, and LCHuv, as well as handle random color generation and contrast ratio calculation.
Turbolinks
Turbolinks makes navigating your web application faster
Nested
Gap free multi column grid
Design Blocks
A set of 170+ Bootstrap based design blocks ready to be used to create clean modern websites.
Rando.js
The world's easiest, most powerful random function.
Tether
A positioning engine to make overlays, tooltips and dropdowns better #hubspot-open-source
Eqcss
EQCSS is a plugin that introduces Element Queries, Scoped CSS, a Parent selector, and responsive JavaScript to all browsers IE8 and up
Vue Js Modal
:pizza: Simple to use, highly customizable, mobile friendly Vue.js 2.0+ modal.
Dragula
:ok_hand: Drag and drop so simple it hurts
Tire
Tire is a lightweight JavaScript library for modern browsers
Sizzle
A sizzlin' hot selector engine.
jQuery Evergreen
Small & fast DOM and event library for modern browsers.
Node List.js
NodeList implementation/library - Use the Native DOM APIs as easily as jQuery