JavaScript charting tools: an overview

No mention of dygraphs either, although it is only for time-series data. <a href="http://danvk.org/dygraphs/" rel="nofollow">http://danvk.org/dygraphs/</a>

Good post covering all the popular javascript plugins for different libraries. Definitely want to see or build a Raphael library. Who's in?

No Bluff? MIT license, and the only dependencies are JS.Class and ExCanvas (both are bundled with it).<p><a href="http://bluff.jcoglan.com/" rel="nofollow">http://bluff.jcoglan.com/</a>

I quite like OpenFlashChart (which uses JSON as an input format, though that JSON is typically made with a server-side language).<p>I use the Python bindings (which use Chart objects) and the output generally works with my brain. Users like that mouse-overs give exact values in the line at that point.

As soon as you need to embed an image of the chart in a pdf you may run into issues with these libraries.

Thanks everyone for enriching this list. You may find useful my delicious list: <a href="http://delicious.com/robicch/chart" rel="nofollow">http://delicious.com/robicch/chart</a>

Anyone know of a chart lib that will do three or more y-axis, or a way to hack in three or more axis?