DataTip - The fastest way to store & access your critical datapoints.
Google Charts - Interactive charts for browsers and mobile devices.
Proof.ink - Proven immutable data stored on the Steem blockchain
ZingChart - ZingChart is a fast, modern, powerful JavaScript charting library for building animated, interactive charts and graphs. Bring on the big data!
Immutable.js - Immutable persistent data collections for Javascript which increase efficiency and simplicity. - immutable-js/immutable-js
Highcharts - A charting library written in pure JavaScript, offering an easy way of adding interactive charts to your web site or web application