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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.


16th June, Rachel
I have a question about the 3D Bar chart
12th June, Marco
Should I use SVG or canvas for the charts on my website?
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?


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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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How can I use RGraph with an IoT ESP32 ESP8266?


Posted by JohnBras at 22:02 on Wednesday 6th December 2023 [link]
Did anyone use this with Arduino to make a gauge meter for temperature sensing, as an example, and a ESP8266 so that we can work offline ? Is there a tutorial how to get me started ?

Posted by Richard at 23:38 on Wednesday 6th December 2023 [link]
I've never done that or used such a 'thing' - but maybe this might help:

var value = 80; // <-- Change this 80 to be the value that you want to see on the Gauge

new RGraph.Gauge({
    id: 'cvs',
    min: 0,
    max: 100,
    value: value,
    options: {
    }
}).draw();

HTH

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