Chart.js - Easy, object oriented client side graphs for designers and developers.
AnyChart - Award-winning JavaScript charting library & Qlik Sense extensions from a global leader in data visualization! Loved by thousands of happy customers, including over 75% of Fortune 500 companies & over half of the top 1000 software vendors worldwide.
PlotNeurons - The most simple neural network plotter
ApexCharts - Open-source modern charting library 📊
CanvasJS - HTML5 JavaScript, jQuery, Angular, React Charts for Data Visualization
Highcharts - A charting library written in pure JavaScript, offering an easy way of adding interactive charts to your web site or web application