jqPlot produces beautiful line, bar and pie charts with axes, shadows even the grid itself is handled by pluggable “renderers”. Not only are the plot elements customizable, plugins can expand functionality of the plot too! There are plenty of hooks into the core jqPlot code allowing for custom event handlers, creation of new plot types, adding canvases to the plot, and more!
GraphUp is a very flexible and lightweight only 4kB to loadjQuery plugin to spice up your data tables. It visualizes the values using color, bar charts and bubbles.
Compatible Browsers: Chrome 5, FireFox 2, FireFox 3, IE7, IE8, Opera, Safari
The current version is 1.4.1 and is available under the GPL or MIT licenses. Whilst the API itself is pretty simple to use (the format to generate graphs is to form a complex url with multiple query string parameters), the plugin goes one step further and actually forms that complex url for you, by allowing you to set the parameters you want with simple jQuery calls: