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.net Powerful JavaScript charts
About
RGraph is a JavaScript charts library based on HTML5 SVG and canvas. RGraph is mature (over 18 years old) and has a wealth of features making it an ideal choice to use for showing charts on your website.

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Version 7.20
Version 7.20 (released in June 2026) is the latest version of RGraph and the major change in this version is an update to the default values of properties making for better looking charts without having to set any properties. Read more about this and other changes in the changelog.

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Download
Get the latest version of RGraph (version 7.20, 9th June 2026) 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.

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Latest forum posts
These are the latest support forum posts that have been posted or updated.

9th June, Richard
New version of RGraph: version 7.20
3rd June, Patrick
Question about installing RGraph
1st June, Ouja
How do I add a click event to a bar in my Bar chart?
8th May, Anthony Kuma
Does the SVG Line chart have outofbounds functionality?


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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.

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The prototypal JavaScript object model

Written by Richard Heyes, RGraph author, on 19th December 2015

A new article is available that explores the javascript object model and explains the various options that you have when using it.

It only talks about the es5, functional style of object-oriented programming and does not explain the new es6 classes that are now available.

How does this apply to RGraph?

In order to keep compatibility with older browsers that may not support newer javascript features (ie the newer syntax for defining classes) all of the RGraph objects are defined using this style of object definition.

So understanding how javascript objects are defined and used will help you when you're working with RGraph.

https://www.rgraph.net/blog/objects.html