Tippyjs
Highly customizable vanilla JS tooltip/popover library
Set Dom
📑 Lightweight dom diffing with plain old html.
Cheerio
Fast, flexible, and lean implementation of core jQuery designed specifically for the server.
Slim.js
Fast & Robust Front-End Micro-framework based on modern standards
HtmlJs
HTML render engine and data binding (MVVM)
Ansi Up
A javascript library that converts text with ANSI terminal codes into colorful HTML
Eqcss
EQCSS is a plugin that introduces Element Queries, Scoped CSS, a Parent selector, and responsive JavaScript to all browsers IE8 and up
Tether
A positioning engine to make overlays, tooltips and dropdowns better #hubspot-open-source
jQuery.lazy
A lightweight, fast, feature-rich, powerful and highly configurable delayed content, image and background lazy loading plugin for jQuery & Zepto.
Gliojs
Exit popup easely. Detects if the mouse of a user leaves the viewport borders of your website
Dragula
:ok_hand: Drag and drop so simple it hurts
Bind.js
bind.js - simple two way data binding to HTML and callbacks
Mag.js
MagJS - Modular Application Glue
Node List.js
NodeList implementation/library - Use the Native DOM APIs as easily as jQuery
Cortex
A javascript library for centrally managing data with React
Vissense
A utility library for observing visibility changes of DOM elements.
Uikit
A lightweight and modular front-end framework for developing fast and powerful web interfaces.