RGraph is a free (MIT license) JavaScript based HTML5 charts and graphs library that can make over 20 different types of charts, graphs and gauges. Bar charts, Line charts, Pie charts etc are all catered for and the charts are created inside the browser with JavaScript which increases speed and reduces server load.
Presenting statistical data in a readable, eye-catching manner is important, but it can also be difficult. The dojox/charting system was created to alleviate those pains by allowing developers to create dynamic, unique, and functional charts from varying sets of data. In addition, dojox/charting provides numerous themes and chart types to allow developers to display their data any way they'd like. This tutorial will show you how to create basic charts with varying data, plots, axes, and themes.
aiSee automatically calculates a customizable layout of graphs specified in GDL (Graph Description Language). This layout is then displayed, and can be interactively explored, printed, and exported to various formats.