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.
Version 7.01 released
Version 7.01 (released in October 2025) is the
latest version of RGraph and now includes a new tree
structure object. The accompanying Treemenu object can then turn
the object into a fully dynamic tree menu.
You can read the API documentation for the tree on
the main API documentation page
and see an example of the Treemenu
feature by following this link...
New HTML datagrid
In the April 2025 (v6.21) 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 7.01, 8th October 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.HOWTO: Turning a label into a link
Prior to version 6.18 doing this involved a significant effort and a not-insubstantial amount of code to achieve. However since version 6.18 was made available it has become as simple as adding an anchor tag (<a>) around your label. The target attribute is also supported so you can stipulate that the link opens in a new window if you want it to. As well as the labels you can also give links in the title, subtitle, any custom text, key labels etc. Here's some sample code for a Pie chart that uses links in the labels:
>script<
new RGraph.SVG.Pie({
id: 'chart-container',
data: [4,8,6,5,3,4,6,8],
options: {
labels:[
'<a href="https://www.google.com#q=richard" target="_blank">Richard</a>',
'<a href="https://www.google.com#q=jimmy" target="_blank">Jimmy</a>',
'<a href="https://www.google.com#q=apollo" target="_blank">Apollo</a>',
'<a href="https://www.google.com#q=davey" target="_blank">Davey</a>',
'<a href="https://www.google.com#q=craig" target="_blank">Craig</a>',
'<a href="https://www.google.com#q=alex" target="_blank">Alex</a>',
'<a href="https://www.google.com#q=terry" target="_blank">Terry</a>',
'<a href="https://www.google.com#q=june" target="_blank">June</a>'
],
title: '<a href="https://www.google.com#q=scores" target="_blank">User scores</a>',
titleOffsety: -9
}
}).draw();
>/script<