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 show charts on your website.

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Get the latest version of RGraph (version 6.17) from the download page. 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 (£99) commercial license available.

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Hot on the heels of version 6.03 - version 6.04 is now available! There's only one change in this release - the default tooltip effect for canvas charts has been changed to the new "slide" effect.

As the name suggests, this, like the SVG tooltips, slides the tooltip into position instead of fading in. If showing the first tooltip on the page the sliding motion originates from the top left corner of the page and if this isn't the first tooltip to be shown it will slide into the new position from the position of the previous tooltip.

You can download the software here (on GitHub) or from the RGraph website:

https://www.rgraph.net/download.html