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.Donut chart API reference
The Donut chart was formerly a separate type. However, it's now simply a variant of the Pie chart. In the example code, the variant property is highlighted and this is the property to use to get your Pie chart to appear as a Donut chart.
Example
<script> data = [45,57,48,32, 26,41]; labels = ['Jan', 'Ben', 'Mark', 'Lucy','Jill', 'James']; new RGraph.Pie({ id: 'cvs', data: data, options: { labels: labels, tooltips: 'Results:<br />%{key}', tooltipsFormattedKeyLabels: labels, tooltipsCss: { fontSize: '16pt', textAlign: 'left' }, linewidth: 3, colorsStroke: 'white', variant: 'donut', shadow: false } }).draw(); </script>
See also
- Donut chart examples in the download archive
- Pie chart documentation