Open Source Java 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.

The AJAX JSP Tag Library is a set of JSP tags that simplify the use of Asynchronous JavaScript and XML (AJAX) technology in JavaServer Pages. Development moved to Mercurial

JAPI is a collection of Java libraries that help with various tasks like argument parsing, i18n/l10n, creating gui applications, as well as tools that demonstrate this.

XUI is a Java and XML RIA platform for building smart app's. Swing, AWT and other widget sets can be used on a range of hardware. XUI's modular framework can help many aspects of application development. NetBeans and Eclipse are available.

OpenSwing is a components library that provides a rich set of advanced graphics components for developing desktop applications and HTTP/RMI based java applications/RIAs based on Swing front-end. It provides also adapters for Hibernate, JPA, iBatis, etc.

SHEF is a WYSIWYG HTML editor framework and embeddable component for Swing. It takes the pain out of using JEditorPane.

A Java WEB application framework featuring: Flows (ie. components designed as finite state-machines usable as subflows, modal dialogs and components), a rendering engine able to refresh only changed parts of a web page via Ajax, and much much more ...

Buoy is a library for creating user interfaces in Java programs. It is built on top of Swing, but provides completely new classes to represent UI components. Its advantages include a simpler API, a more powerful event handling mechanism, and much more.

JStatCom is a software framework that facilitates the creation of JAVA programs for data based analysis tasks in various domains. It provides ways to call routines from specialized software packages, like Matlab, Gauss, Ox, and possibly others.

Bounce, a set of Java and Swing extensions, including ... layout managers like a FormLayout and CenterLayout, image filters, a comprehensive messaging mechanism, a XMLEditorKit with syntax highlighting and automatic indentation and more.

ACDK - Artefaktur Component Development Kit - is a platform independent C++-framework similar to Java or C#/.NET for generating distributed and scriptable components and applications.

SweetDEV RIA is a complete set of Java/J2EE world-class Ajax tags. It helps you to design Rich GUI in a thin client.

Example application to demonstrate the use and the abilities of the Spring RCP framework in conjunction with the Amazon ECS WebServices. The application acts as a frontend to the Amazon Services.

ArchivedLayout separates the GUI description from the business logik. Layouts are described in well-readable XML files and dynamicly bound to Java fields and methods of the underlying program. Created in 2001. Used in several projects. Enjoy.

Ever wondered, how to create a huge Java/swing application, without ignoring the MVC-Pattern? BlackVisi is the ultimative way to keep you code simple, stable and maintainable! It is state-oriented, uses state-of-the art techniques (Java5) and is flexible

Based on the widely used framework:Springframework,Supplied one solution for presentation layer which intergrate the service concept with the common AJAX. Without considering complex javascript code and serverside logic just define the extend attributes.

A client container for Swing, based on Java 5 language features (annotations, enums...), and PicoContainer. Develop Swing applications with a simple development model, using POJOs, a clean MVC pattern and services and be more productive.

Xwidgets is a multiple UI framework for java. It uses Swing, SWT and Qt Jambi to draw your apps. Charva is pending.

Denvir is an environment diagnostic library. It should be used by application start-up to check its requirements (for example the right JDK). If a problem occurs, Denvir will provide possible solutions to the end-user.

Drombler FX is a modular Rich Client Platform for JavaFX based on OSGi and Maven (POM-first). The artifacts are available from Maven Central. Have a look at the Wiki for more information.

The Eclipse OpenGL Pack is an Eclipse PlugIn, which provides an easy-to-use way to develop and deploy OpenGL-enhanced Java applications within the Eclipse IDE. It includes all external libraries that are required to get an OpenGL application started.

Entando is the lightest open source Digital Transformation Platform for Modern Applications. We help customers bring to production enterprise applications that are lightweight, cloud native, and highly customized, and do so significantly faster than their competitors. Our platform harmonizes user experience across enterprise omnichannel applications, accelerating time to market, and increasing development efficiency. Get the latest version of Entando's Community Edition and its Plugins on Github (http://github.com/entando).

For Java, parses GNU standards compliant command line arguments and calls event handler methods/fields automatically, based on given arguments (cmd line & from file). Use annotations to define your options, and descriptions for the auto generated help.

Fast UML is an open-source UML tool with a simple user interface pop-up free. Draw UML diagrams fast, export diagrams to png, jpg and clipboard. It pretends to be the union between Violet and UMLet.