RGraph is a free graph library that uses the HTML5 canvas tag.

Using the library, it is possible to create a wide variety of graph types:

• bar, pie, donut, gantt, radar, funnel, bi-polar charts
• line and scatter graphs
• LED display
• meter
• odometer
• progress bar

The charts are interactive (respond to mouse-overs and clicks) and, optionally, they can load with animations or zoom to a specific point.

There is also an annotation feature where you can draw over the graphs for highlighting them.

P.S. RGraph is only free for personal use.

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Tags: Canvas, HTML5

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