FlashCharts - description from Softdepia.com:
FlashChart is the answer to your web enabled application's simple charting needs. It can transform a data of boring numbers into a nice looking chart. FlashChart v1.0 generates two types of bar charts, a line chart, and a pie chart. It generates all the graphics in the client computer using Macromedia's Flash technology, taking the load off your servers and eliminating the use of DLL components or ActiveX contols.
FlashCharts is a "Free to try" program. You can download and try it for an evaluation period.