하이차트 http://www.highcharts.com/ amcharts https://www.amcharts.com nvd3 http://nvd3.org/ c3js http://c3js.org/ 구글 차트 https://developers.google.com/chart/ chartjs http://www.chartjs.org/ d3 https://github.com/d3/d3/wiki/Gallery morrisjs http://morrisjs.github.io/morris.js/