Highcharts
64,509 websites

Highcharts offers both free and paid options

http://www.highcharts.com/products/highcharts

Highcharts is a charting library written in pure JavaScript, offering an easy way of adding interactive charts to your web site or web application. Highcharts currently supports line, spline, area, areaspline, column, bar, pie, scatter, ang...

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MooTools
192,033 websites

MooTools is free to use

http://mootools.net/

MooTools is a collection of JavaScript utilities designed for the intermediate to advanced JavaScript developer. It allows you to write powerful and flexible code with its elegant, well documented, and coherent APIs.

Market Share by Top Websites

1 MooTools is leading in Top 1M Sites and The Entire Web.

2 Highcharts is leading in Top 10K Sites and Top 100K Sites.

Websites Categories

1 MooTools has better usage coverage in more websites categories. Including Science & Education, Computers Electronics & Technology, Law & Government, Health and 18 other categories.

2 Highcharts is leading in Finance and Jobs & Career.

Geography

1 MooTools is leading in most countries, including Russia, United States, Germany, Italy and 139 other countries.

2 Highcharts is leading in China, India, Indonesia, Taiwan and 17 other countries.