The JGoodies open source libraries Animation, Binding, Common, Forms, Looks, and Validation are developed, supported, maintained, and instantly improved like professional Software products. However, they are free of charge and the relaxed terms of the BSD Open Source License allow you to use them in free as well as commercial applications.
The free JGoodies libraries are well received by the Java community and are reliable building blocks for many Java applications worldwide. Their API has been carefully designed for a balance between features and low learning curve. From time to time we clean up the API, to keep the libraries small and to reduce our maintenance efforts.
The libraries you can download for free have been financed by customers of the commercial JGoodies Swing Suite and JGoodies Smart Client. It is only with their money that I can provide and maintain them at no charge.