AmCharts is a set of free, fully customizable animated, 3D or 2D flash and JavaScript (HTML5) charts for your websites and Web-based products. AmCharts can extract data from simple CSV or XML files, or they can read dynamic data generated with PHP, .NET, Java, Ruby on Rails, Perl, ColdFusion, and many other programming languages. Line, area, pie, donut (doughnut), bar, column, scatter, bubble, xy, radar, polar, spider, logarithmic scale charts, time plot, etc can be drawn using Amcharts.
Link: http://www.amcharts.com/
