Pixi.js - Fast lightweight 2D library that works across all devices
Google Charts - Interactive charts for browsers and mobile devices.
Anime.js - Lightweight JavaScript animation library
ZingChart - ZingChart is a fast, modern, powerful JavaScript charting library for building animated, interactive charts and graphs. Bring on the big data!
Glottologist - JavaScript translation framework
Highcharts - A charting library written in pure JavaScript, offering an easy way of adding interactive charts to your web site or web application