Easy-to-use, open source web development platform. Visual, drag and drop tools allow anyone to create web apps with minimal learning curve. Java architecture: Spring, Hibernate, Ajax Dojo toolkit, MySQL, PostgreSQL, HSQLDB (bundles w HSQLDB)
Ranka is an elegant, extensible framework for creating enterprise-ready Java web(2.0) applications based. It is designed to streamline the full development cycle, from designing, to building, to deploying, to maintaining applications over time.