If you&#x27;re looking for something less &quot;heavy&quot;, I heartily recommend <a href="http:&#x2F;&#x2F;metricsgraphicsjs.org&#x2F;" rel="nofollow">http:&#x2F;&#x2F;metricsgraphicsjs.org&#x2F;</a>, another charting library based on D3 and developed at Mozilla, which is very easy to use and renders elegant charts by default.