CanvasJS - HTML5 JavaScript, jQuery, Angular, React Charts for Data Visualization
QuickChart - QuickChart is easy to use and open-source open API that makes it easy to generate chart images.
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.
Google Charts - Interactive charts for browsers and mobile devices.
RAWGraphs - RAWGraphs is an open source app built with the goal of making the visualization of complex data...
Image Charts - No more pain rendering charts server-side.