ECharts is a free, powerful charting and visualization library offering an easy way of adding intuitive, interactive, and highly customizable charts to your commercial products. It is written in pure JavaScript and based on zrender, which is a whole new lightweight canvas library.
npm install echarts --save
https://github.com/ecomfe/awesome-echarts
Graph Modularity Graph modularity extension for community detection
leaflet-echarts by wandergis
arcgis-echarts by wandergis
ECharts is available under the BSD license.