Flow Type.js
Web typography at its finest: font-size and line-height based on element width.
Do Mtastic
Small & fast DOM and event library for modern browsers.
Communist
JavaScript library for web workers.
Angular Socialshare
Angular social share module, share urls and content on social networks such as facebook, google+, twitter, pinterest and so on - http://720kb.github.io/angular-socialshare
Gl Boost
A Useful WebGL Library for Small Turning
Masonry
Layout elements in a grid, like a mason fitting stones in a wall
Enyo
A JavaScript application framework emphasizing modularity and encapsulation
Next.js
Next.js is a lightweight framework for static and server‑rendered applications.
Golden Layout
The ultimate Javascript layout manager
Text Tailor.js
jQuery plugin, tailor made text to fill the height of the parent element or ellipse it if it doesn't fit
Vex
A modern dialog library which is highly configurable and easy to style. #hubspot-open-source
Mag.js
MagJS - Modular Application Glue
Loglevel
Minimal lightweight logging for JavaScript, adding reliable log level methods to wrap any available console.log methods
Between.js
Lightweight JavaScript (ES6) tweening engine
Adapt
Adapt.js serves CSS based on screen width.
101
A modern JS utility library
Css3 Finalize
Tired of adding prefix for each broswer when it comes to the new css3 attributes?