Google Charts - Interactive charts for browsers and mobile devices.

DataWrapper - An open source tool helping anyone to create simple, correct and embeddable charts in minutes.

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

ZoomCharts - Creating meaningful and aesthetically pleasing data visualizations and incorporating them into your projects is easy with the tools offered by ZoomCharts.

FusionCharts - JavaScript charts for web and mobile apps.

AndroidPlot - AndroidPlot is a library for creating dynamic and static charts in your Android app.