Google Charts - Interactive charts for browsers and mobile devices.

Highcharts - A charting library written in pure JavaScript, offering an easy way of adding interactive charts to your web site or web application

Squey - Squey is an open-source visualization software designed to interactively explore and understand large amounts of tabular data.

D3.js - D3.js is a JavaScript library for manipulating documents based on data. D3 helps you bring data to life using HTML, SVG, and CSS.

CanvasJS - HTML5 JavaScript, jQuery, Angular, React Charts for Data Visualization

Raphael - Raphael.js is an Object Oriented drawing library. It is good at making in-depth diagrams with complex interactions.