RGraph is a JavaScript charts library based on HTML5 SVG and canvas. RGraph is mature (over 15 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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Get the latest version of RGraph (version 6.18, 1st June 2024) 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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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 do I set the width of the bars in a Bar chart?

Posted by Andrea at 14:17 on Thursday 15th April 2021 [link]
How can I set the of the bars in a classic vertical bar chart?

Posted by Richard at 15:13 on Thursday 15th April 2021 [link]
To set the width of the bars you can use the marginInner setting. This is the margin either side of the bar so a higher setting will result in thinner bars.

There's a codepen example here:


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