Open Source JavaScript User Interface (UI) Software

ZK is an open-source Java framework for building modern web and mobile applications. It enables developers to create rich, interactive UIs using only Java — no JavaScript required. With 200+ Ajax-powered components, event-driven architecture, and support for popular technologies like Spring, Java EE, and JSP/JSF, ZK makes it simple to deliver powerful and user-friendly web applications.

A lightweight IDE for Artificial Intelligence. Started as GUI for the Euler reasoning engine. The sources can be N3, RDF, OWL, UML, eCore, plain XML or XSD, files or URL's. Wraps Drools (or CWM, FuXi) as N3 rules engines. Model based app. generation.

A Customer Relationship Management (CRM) webapplication that uses OASIS CIQ standards for administrating organisations, persons, memberships, as well as contact information.

A dialect of XUL implementing most of Mozilla XUL's Fourth Draft. XML User Interface Language (XUL) is a method for easily creating GUI applications. Lux XUL supports Python scripting via Jython 2.1.

TRIAD is a browser-independent and platform-independent framework for Rich Internet Aplications.

Toxicity is a open source XML microkernel for document oriented development based on Java. It provides support for processing all kinds of informations that can be represented in form of XML documents.

Xeditium is a framework of extensible XML document editior/browser with Swing and Web interfaces on a recursive bootstrap mechanism of JavaWebStart. It launches Tapestry/Jetty httpd internally and serves dynamic generated JNLP files.

The Zeleos Project aims to provide a bottom-up open source solution to develop Rich Internet Applications. The Zeleos Web Toolkit is a Web Rich Client Application Framework that was designed to be highly extensible and very easy to use.

Toolkit for rapid XML and web application development including a full XForms 1.1 implementation and a rich set of widget and layout-containers. Extensible interfaces for integration of custom controls, functions and data connectors.