i) D3.js — Data-Driven Documents
- Open source
- https://github.com/mbostock/d3/wiki/Gallery
ii) Google Visualization Charts
- Pie chart doesn't show the connected lines for all slices
iii) Fusioncharts (http://www.fusioncharts.com/charts/pie-doughnut-charts/)
- With "Fusionchart watermark" its free for both personal and commercial
- If we need to remove water mark, we need to buy the licence
- 2d Pie chart available with connected lines
iv) Flot
- Flot is completely free to use and commercial support is provided on special request to the creator.
- Pie chart available
v) ChartJs
- Open source
- Pie chart available
- Not sure about connected legends
vi) EJS Chart
- EJS Chart comes in free and paid versions. The free version limits you to use maximum of 1 chart per page and 2 series per chart.
vii) uvCharts
- Open source
- D3.js base
- No connected lines for pie chart
viii) Chartist.js
- Its animations only supported in modern browsers
- No clear examples for pie charts
ix) jqChart - http://www.jqchart.com/jquery/chart/ChartTypes/PieChartLabels
- Matched with requirement
- Trail version only available for download
- Licensed
x) amCharts (http://www.amcharts.com/demos/pie-chart-with-legend/)
- The free version of amChart will leave a backlink to its website on the top of every chart.
- Pie chart looks good
- Commercial
xi) MeteorCharts
- Commercial
xii) Highcharts JS
- Free for personal use
- Licence for commercial
- Pie chart available
xiii) Chartkick
- Its built for Ruby Application
- Code available for Rubly only
xiv) n3-charts
- Pie chart not available
xv) Ember Charts
- Open source
- Connected legend option not available
xvi) Smoothie Charts
- Pie chart not available
- Displaying only smooth live time lines
Source : http://www.sitepoint.com/15-best-javascript-charting-libraries/
