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.

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.

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.

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

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).

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)

The Moqui Ecosystem is a series of open source components for enterprise applications all built on a common framework (Moqui Framework) written in Java and Groovy. The components include tools that plug in to the framework, business artifacts, and applications. Some of the popular tool plug ins include ElasticSearch, Apache FOP, Apache Camel, OrientDB, and Hazelcast. The business artifacts later includes a universal data model (mantle-udm), service library (mantle-usl), reusable screens (SimpleScreens), and integration components for EDI, Authorize.NET, and Shippo. There are 2 main applications in the ecosystem: POP Commerce ERP and eCommerce for retail and wholesale, and HiveMind Project Management and ERP for service organizations. NOTE: the code repositories for Moqui Ecosystem are hosted on GitHub at: https://github.com/moqui

ROMA want to change the way to do Web Applications. It's a Java framework totally POJO based and designed with the concepts taken from Ruby On Rails. The current release is full working and allows to build Ajax Web Apps with database and CRUD in minutes

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

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.

The ConquestExplorer framework is an open- source software for rapid prototyping of data-oriented desktop applications. It supports a transparent data model, interfaces for external tools and CRUD (Create, Update, Delete) features.

Firmata is a generic protocol for communicating with microcontrollers from software on a host computer. It is intended to work with any host computer software package. There are implementations for multiple microcontrollers and host software packages.

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.

JAXX is a powerful XML user interface language for Java. JAXX source files compile into ordinary Java classes, making integration a snap. JAXX features advanced data binding and event handling, and uses (fully compiled) Java as its scripting language

NTW is a cross-platform client/server protocol and widget toolkit that allows efficient remote operation, even over slow networks. Its goal is to be able to serve hundreds of remote clients with a single inexpensive server.

AJAF (A Java AJAX Framework) is a very light weight engine that assists developers in – a) AJAX communication between browser and server and b) HTML rendering to achieve partial page refreshes.

Abstract Laboratory for Education & Science – 6 Java frameworks for rapid development of GUI applications/applets. Includes plots, unified access to Swing components and super-rapid development of “labs" (typical educational/research applications)

Abbot for SWT is a Java framework that lets you more easily write JUnit tests that target Eclipse-based SWT/JFace UI. It also supports the Eclipse GEF & GMF graphical editing frameworks and has some support for WTP (web tools project) UI.

Agile grid is a complete new implementation of custom table for Java SWT applications, which uses the structure and some code fragments from the JFace table viewer. The features of this table implementation include: - A content provider provides the data

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.

An implementation of an object-oriented UI for Naked Objects framework, implementing using Apache Wicket.

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.

The Ars Machina Project is a collection of packages with two general goals: to reduce the amount of code needed to implement an application and to suggest some standards to the software architecture and naming of classes and interfaces.