The Github pages reads: &quot;Built on top of d3.js and stack.gl, plotly.js is a high-level, declarative charting library. plotly.js ships with 20 chart types, including 3D charts, statistical graphs, and SVG maps.&quot; -- <a href="https:&#x2F;&#x2F;github.com&#x2F;plotly&#x2F;plotly.js" rel="nofollow">https:&#x2F;&#x2F;github.com&#x2F;plotly&#x2F;plotly.js</a><p>It feels a bit heavy in comparision to Highcharts or the open source Flotcharts. Though some chart types are pretty impressive, same can be said for d3.js in general.<p>But thanks for releasing plotly.js as open source.