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.
Version 7.10 released
Version 7.10 (released in January 2026) is the
latest version of RGraph and contains various updates
to the code which you can see on
the changelog page. There's
also a big tidy up in terms of comments and a significant
change to the way that the internal code is referenced which
should lead to a performance improvement in effects and
animations.
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 7.10, 18th January 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.
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.Version 7.00 of RGraph is now available
Written by Richard Heyes, RGraph author, on 12th August 2025
Happy release day! This is a major version increase that only has a single significant improvement (and a few other minor tweaks) and that improvement is... greatly improved text!
The new technique that's used to draw text is called scaling and you can read the documentation page describing the new scaling feature here.
There's a list of points to be aware of on that page but one thing that stands out is that the coordinate space of the canvas tag has been doubled (despite the canvas tag remaining at the same width and height dimensions).
This probably won't affect you if you just have a regular chart - but if you're delving into the API or doing custom drawing of your own then this is something that you'll now need to keep in mind and account for it in the coordinates that you use.
The antialiasing HOWTO document has been updated with a comparison of no antialiasing, the previous antialiasing style and the new antialias style.
Remember - this update affects the canvas charts along with the drawing API objects.
Also, the RGraph.getImage() function has been added to the canvas common library which gives you an easy way to get a data: URL that represents the canvas (ie it's an easy way to get an image). The function is documented in the API documentation.
You can download the new version of RGraph from
the download page
and the full list of changes (not there is many) is available on
the changelog page
.