localForage : localForage is a handy library that improves the offline experience of your web app by using asynchronous storage (via IndexedDB or WebSQL where avail...
Leaflet : A Modern, Lightweight Open-Source JavaScript Library for Interactive Maps
emotion : emotion is a high performance, lightweight css-in-js library that supports both string and object based styles.
The HTML5 Shiv : The HTML5 Shiv enables use of HTML5 sectioning elements in legacy Internet Explorer and provides basic HTML5 styling for Internet Explorer 6-9, Safari...
Relay : A JavaScript framework for building data-driven React applications.
Never again communicate with your data store using an imperative API. Simply decla...
Rainbow is a code syntax highlighting library written in Javascript.
It was designed to be lightweight (1.4kb), easy to use, and extendable.
It is completely themable via CSS.