Open Source Java User Interface (UI) Software

Litho uses a declarative API to define UI components. You simply describe the layout for your UI based on a set of immutable inputs and the framework takes care of the rest. With code generation, Litho can perform optimisations for your UI under the hood, while keeping your code simple and easy to maintain. Litho can measure and layout your UI ahead of time without blocking the UI thread. By decoupling its layout system from the traditional Android View system, Litho can drop the UI thread constraint imposed by Android. Litho uses Yoga for layout and automatically reduces the number of ViewGroups that your UI contains. This, in addition to Litho's text optimizations, allows for much smaller view hierarchies and improves both memory and scroll performance.

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.

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.

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.

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)

Maveryx is an innovative Test Automation Framework for Java GUI-based applications. It eliminates the GUI Maps dependency by providing a new dynamic GUI objects handling and an expert system detecting and managing AUT changes and defects at runtime.

This project has moved! Go to https://github.com/yenrab/qchybrid

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

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.

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.

THIS PROJECT IS DEAD. For the real appcelerator project, please visit http://www.appcelerator.com

GWTruts is a GWT MVC framework. It uses an easy XML config file to configure the views and controllers and their properties. It is written completely in GWT and has no extra dependencies, therefore it should work fine with any GWT plugins/GWT extensions.

jQuery4jsf is a JSF(JavaServer Faces)component library that uses the power of the jQuery javascript framework. These JSF(JavaServer Faces)components have the added value of jQuery which allows the end user to realize its application in a fast and simple.

Metawidget is a smart User Interface widget that populates itself, at runtime, with UI components to match the properties of your business objects. Supports Swing, Java Server Faces (JSF), GWT, Spring, Struts, Android, Hibernate, Groovy, JPA and more

HTMLi (HTML improved) is the AJAX framework that focuses in: * Transparent use for HTML designers * Multi-platform: 100% XSL (runs with Java, ASP, PHP, etc) * CSS Themes * Multi-Language * XML Handling - AJAX forms Live demo at http://www.htmli.com

A Java framework for writing sprite based games (turn-based, card, and arcade games.) Provides: Sprite management, rendering (Java2d or OpenGL), Collision Detection, Sprite widgets (buttons etc...), visual editor for layout of game widgets.

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

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

Framework to develop J2EE applications rapidly and easily.Allows to define applications just with DB-Schema Creation. Generate applications. caf-dbmanager,built on jdbc to provide ease of use database access use SQL-Parser outside in the form of XML.

The Wicket Stuff project makes third party components available using the Wicket web component framework. Subprojects of this project contain integrations for Spring, Groovy, Hibernate, Velocity and other popular Java open source projects.

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.

The open web architecture framework defines web applications in an eclipse based DSL editor. A code generator transforms the models into a Google Web Toolkit / Google App Engine project which can be customized by the developer.

MyDoggy is an IntelliJ Idea like docking framework for managing secondary windows within the main window. MyDoggy allows to move, resize or detach those secondary windows. Also, MyDoggy provides support for content management of the main window.

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.