About
RGraph is a JavaScript charts library based on
HTML5 SVG and canvas. RGraph is mature (over 17 years
old) and has a wealth of features making it an ideal
choice to use for showing charts on your website.
New HTML datagrid
In the April 2025 release a new datagrid object
was added.
This makes it easy to add static or dynamic data
tables to your pages. It can be used whether you use the
canvas or SVG libraries or entirely standalone.
Download
Get the latest version of RGraph (version 6.22, 24th June 2025) from
the download page. You can read the changelog here. There's also older versions available,
minified files and links to cdnjs.com hosted libraries.
License
RGraph can be used for free under the GPL or if
that doesn't suit your situation there's an
inexpensive (£129) commercial license available.A 3D Donut chart
Here's an example of a 3D Pie chart effect used in conjunction with the donut3d variation (use the variant property as shown below).
Other variants include: pie pie3d and donut
On this chart, the shadow is used to accentuate the appearance of depth.
The 3D effect is achieved by stretching the canvas in the horizontal direction - which is why the text looks stretched.
In terms of the responsive nature of the chart, when viewing on smaller screens the labels are switched to tooltips and a title is added to indicate as such.
This goes in the documents header:
<script src="RGraph.common.core.js"></script> <script src="RGraph.common.dynamic.js"></script> <script src="RGraph.common.tooltips.js"></script> <script src="RGraph.pie.js"></script>Put this where you want the chart to show up:
<canvas id="cvs" width="600" height="350" style="float: right">[No canvas support]</canvas>This is the code that generates the chart - it should be placed AFTER the canvas tag(s):
<script> labels = ['Mavis','Kevin','Luis','June','Olga','Luis','Pete','Bridget']; // Create the Pie chart, set the donut variant and the rest of the // configuration. The variant property is what sets the chart to // be a Donut chart instead of a regular Pie chart. new RGraph.Pie({ id: 'cvs', data: [4,8,6,3,5,2,5], options: { shadow: true, shadowOffsetx: 0, shadowOffsety: 5, shadowColor: '#aaa', variant: 'donut3d', labels: labels, labelsSticksLength: 15, labelsSticksLinewidth: 2, colorsStroke: 'transparent', tooltipsCss:{ fontSize:'16pt' } } }).draw().responsive([ {maxWidth: null,width:600,height:350,options:{radius: 100,labelsList: true, labels:labels,title:'',tooltips:null}}, {maxWidth: 900,width:400,height:250,options:{radius: 90,labels: null,title: '(Click for labels)',tooltips:labels}} ]); </script>