VARCHART JGantt
- Java Gantt component. [Commercial]
- http://www.netronic.com/english/set_j_gantt.html

JFreeChart
- Creates charts such as bar charts, line charts, pie charts, time series charts, candlestick charts, high/low/open/close charts, wind plots, and meter charts. [Open Source, LGPL]
- http://www.jfree.org/jfreechart/

xmlCharts
- An easy way to configure and draw charts from XML. XmlCharts is written in Java and used jCharts. [Open source, LGPL]
- http://xmlchart.sourceforge.net/

ChartDirector for Java
- A Java chart and graph library designed for JSP server side usage. Allows charts to be composed through layers. [Free and commercial versions]
- http://www.advsofteng.com/cdjava.html

Visual Mining
- Performance dashboard, graphical reporting and charting tools to quickly create dashboards, reporting and online graphs. [Commercial]
- http://www.visualmining.com/

Big Faceless Graph Library
- A class library for creating graphs and charts in Java. Backed by a full 3D engine, it can plot 2D or shaded 3D Pie Charts, Line Graphs, Area and Bar Graphs from any viewpoint to PNG, Flash, PDF or SVG. [Commercial w/ trial]
- http://big.faceless.org/products/graph/

Plotlib Toolkit
- Extensible object-oriented graphing framework using the Java2D API, supporting XML, and with additional simplified classes for common requirements. [Open Source, GPL]
- http://www.bablokb.de/plotlib/index.html

RChart
- Java charting package that can be used as bean, servlet or applet. Requires almost no programming since charts are designed using RChart Visual Builder. [Commercial]
- http://www.java4less.com/charts_e.htm

JGACE (Java Graph and Chart Engine)
- A chart library with a flexible building-block-architecture. It has an API for off-screen operations like printing or creating images and contains many 2D and 3D chart implementations. [Shareware]
- http://www.netcat.li/java-graph-and-chart-engine/

Charts Package - ILOG JViews Component Suite
- Provides complete support for Web-based charting, bringing truly dynamic, interactive charts to Web GUIs. [Commercial]
- http://www.ilog.com/products/jviews/charts/

Desai Technologies
- Data visualization components; features an interactive Gantt chart and timeline chart.
- http://www.desaitech.com/html/Index.htm

jCharts
- A 100% Java based charting utility that outputs a variety of charts. This package is ideal for displaying charts via Servlets.
- http://sourceforge.net/projects/jcharts/

JOpenChart
- A Java library for rendering various kinds of charts and to include them into WWW and Swing applications. It can interpolate measured data and plot arbitrary mathematical functions. [OpenSource, GPL]
- http://sourceforge.net/projects/jopenchart

3D Multi Series Column Chart Bean
- Enable you to add column charts to your applications. Features grouped into several different data objects to make implementation simpler and more flexible. [Commercial w/demo and lite version]
- http://www.enterprisecore.com/columnchartbean.htm

Express Chart
- Tools for visual chart editing and creation from a wide selection of templates and styles.
- http://www.quadbase.com/espresschart/

KavaChart
- A collection of Java charting utilities, including applets, beans, server-side imaging tools, and COM objects. [Commercial w/ demo]
- http://www.ve.com/

Enterprise Graphs and Charts
- Charting components for use in both server-side and client-side applications. [Commercial]
- http://www.enterprisecore.com/

Ptplot
- 2D data plotter and histogram tool implemented in Java. Ptplot can be used as a standalone applet or application, or it can be embedded in your own applet or application. [Open Source]
- http://ptolemy.eecs.berkeley.edu/java/ptplot/

Singleton Labs
- Provides a charting library: MonarchCharts, which supports pie, bar, and 3D charts; interactive features include scrolling, zooming and 3D chart rotation. [Commercial]
- http://www.singleton-labs.com/

The JetChart Library
- Generates a variety of charts, including line, pie, and bar. [Commercial]
- http://www.jinsight.com/jetchart/

Chart2D
- Plots various types of two-dimensional charts such as pie charts, line charts, bar charts, scatter plot charts, and combo charts; and supports magnification and resizing. [Open source, LGPL]
- http://chart2d.sourceforge.net/

EasyCharts
- A complete library of chart and graph components that can display bars, columns, lines, and pies with overlays. [Commercial]
- http://objectplanet.com/EasyCharts/