Data visualisation is representation of data in an interactive way.So users can easily understand it. There are number of charting libraries available in market like koolchart, google free chart, Highchart etc. Charting library is used to create interactive charts and graphs so that user can easily understand it. charting library offers number of inbuilt functions like animation, charts, graphs, JavaScript charts, HTML5 charts, comments, images etc. Koolchart supports 4 different types of animation effects. koolchart offers charts like bar chart, column charts, pie chart, graphs, active charts, image charts, radar charts , animated charts etc. Koolchart is a pure JavaScript charting library. It is used to create interactive charts.