What is the best open-source java charting library

Question

Why are there not more opensource easy to use charting libraries for Java?. The only successful opensource project in this area seems to be jfreechart, and it doesn't even have any documentation or examples available.

Answer 1

I found this framework: jensoft sw2d, free for non commercial use (dual licensing)

http://www.jensoft.org

regards.

Answer 2

There aren't a lot of them because they would be in competition with JFreeChart, and it's awesome. You can get documentation and examples by downloading the developer's guide. There are also tons of free online tutorials if you search for them.

• JFreeChart - Tutorial
• Introduction to JFreeChart

Answer 3

EasyCharts is commercial so i couldn't use it for my project. I used the GRAL graphing library instead. I found it very easy to customize and it's licensed under LGPL just like JFreeChart, so you can use it for free:

http://trac.erichseifert.de/gral

Answer 4

There is a new charting library in town: JChartlib JChartLib http://freshmeat.net/projects/jchartlib

Answer 5

There is JChart which is all open source. I'm not sure exactly what you are graphing and how you are graphing it (servlets, swing, etc) so I would say just look at a couple different ones and see which works for you.

http://sourceforge.net/projects/jchart/

I've also used JGraph but I've only used their commercial version. They do offer an open source version however:

http://www.jgraph.com/jgraph.html

Answer 6

I've used EasyCharts in the past and it lived up to it's name. It's not as powerful as JFreeChart, but the JAR for EasyCharts is much smaller than for JFreeChart.