Is.js
Micro check library
Radio
Dependency-free Chainable Publish/Subscribe Library for Javascript
Rill
:left_right_arrow: Universal web application framework.
Flight
A lightweight, component-based JavaScript framework
Imagesloaded
JavaScript is all like "You images done yet or what?"
Rambda
Faster alternative to Ramda in just 10kB
jQuery Pjax
pushState + ajax = pjax
Vis
Dynamic, browser-based visualization library
Rx Js
The Reactive Extensions for JavaScript
Almond
A minimal AMD API implementation for use after optimized builds
Fishbone.js
A super lightweight (½kb) JavaScript library with automatic method chaining, automatic context binding, event support and simple inheritance. c-{{{-<
Modernizr
Modernizr is a JavaScript library that detects HTML5 and CSS3 features in the user’s browser.
Lazysizes
High performance and SEO friendly lazy loader for images (responsive and normal), iframes and more, that detects any visibility changes triggered through user interaction, CSS or JavaScript without configuration.
Batman
Fighting Crime and Kicking Apps
Bacon.js
FRP (functional reactive programming) library for Javascript
Uranium
Universal css-in-js media queries for React Native and React
Q
A tool for making and composing asynchronous promises in JavaScript