Vaadin Framework - Vaadin is a web application framework for Rich Internet Applications (RIA).

Audacity - Audacity is a free and open-source audio production software suite that includes a surprising array of editing tools and recording systems.

CheerpJ - The complete Java runtime for modern browsers. CheerpJ is the only solution that can run any large-scale, unmodified Java applications, applets, or libraries in the browser. No downloads or plugins are required.

TwistedWave - TwistedWave is one of the unique audio editors that allow you to edit your music file online without any installation.

OpenXava - OpenXava is a Web Java Framework for Rapid Development of Enterprise Applications.

Radium - Radium is a music editor with a new type of interface.