Open Source ChromeOS User Interface (UI) Software

IUP is a portable toolkit for building graphical user interfaces. It offers a configuration API in three basic languages: C, Lua and LED. IUP purpose is to allow a program to be executed in different systems without any modification.

wxLua is a Lua scripting language wrapper for the wxWidgets cross-platform GUI library. It consists of executables for editing, running, and debugging wxLua scripts, a library for extending C++ programs with a fast, small, fully embeddable scripting language, and a variety of sample programs. With wxLua you can quickly write full-featured programs with graphics, networking, printing, etc. for MS Windows, Linux, and OSX.

OpenUI is an open-source framework focused on enabling AI-driven generation and manipulation of user interfaces through natural language and programmatic inputs. The project aims to bridge the gap between design and development by allowing users to describe UI components and layouts in plain language, which are then translated into structured code or interactive components. It leverages modern AI models and frontend technologies to dynamically generate UI elements that can be customized, refined, and extended within development workflows. OpenUI is particularly useful for rapid prototyping, as it allows developers and designers to iterate on interface ideas without manually writing all the underlying code. The framework also supports extensibility, enabling integration with existing design systems and component libraries. By combining AI-assisted generation with developer control, OpenUI provides a hybrid approach to building interfaces that balances automation with customization.

Surface is a component-based UI library for Phoenix LiveView that brings a declarative, template-driven approach to building interactive interfaces. Inspired by frameworks like React, it introduces components with typed properties, slots, and macros to simplify complex UIs. Developers can create reusable, encapsulated components that integrate seamlessly with LiveView’s server-rendered real-time model. Surface emphasizes readability, making templates feel closer to HTML while retaining Elixir’s functional power. It also provides form helpers, event bindings, and a growing ecosystem of ready-to-use UI components. By combining the productivity of declarative components with LiveView’s real-time updates, Surface enables rich, interactive apps without requiring a separate frontend framework like React or Vue.

wxPHP is a php binding/wrapper for the cross-platform library wxWidgets, which gives you the ability to develop desktop applications using the php programming language. This applications can be executed on windows, linux and macosx using the same code base with a native look and feel. One of the ideas is that you can use your php web applications code base and logic to create native desktop applications that communicate to them transparently. This way you can give your users a seamless and native experience from the desktop while staying in sync with your web apps. There are many more use cases, but we invite you to download and try this project by your self. We hope everyone can enjoy it as much as we have enjoyed developing it.

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.

DivKit is an open source Server-Driven UI (SDUI) framework. It allows you to roll out server-sourced updates to different app versions. Also, it can be used for fast UI prototyping, allowing you to write a layout once and then ship it to iOS, Android, and Web platforms. DivKit is an excellent choice to start using server-driven UI in your project because it can be easily integrated as a simple view in any part of your app. At the starting point, you don’t need a server integration. You can include all JSON on the client-side to try it in a real-world application. Also, we’ve made a sandbox for you to experiment with. You can try different samples in the web editor and see the results on the web or in the Android demo app, both of which are available on Google Play. We’ll publish the iOS demo app shortly. The UI in the demo can be updated live: the sandbox connects to the demo app via web sockets.

HumbleUI is a lightweight, declarative, and composable UI framework, likely intended for building graphical user interfaces in a minimal, modular way. It emphasizes ease of use, customization, and modular components. (Note: while there is a repository, I did not find a detailed README in my search to fully confirm all capabilities.) Electron is a great landmark. Normal shortcuts, icon, its own window, file system access, notifications, OS integrations. Write once, run everywhere is no longer rejected by users. Performant enough not to noticeably lag.

The Adobe Source Libraries (ASL) are a collection of C++ libraries building foundation technology to allow the construction of commercial applications by assembling generic algorithms through declarative descriptions.

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

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

This project in no longer active.

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.

wGui is a simple, platform independent dialog manager library using SDL and FreeType2. Written in C++ (with extensive use of the Standard Library and STL) the intention is to leave all of the antiquated C paradigms out of it (like #defines).

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.

LITS is a game development engine, which offers basic implementations of the most needed interfaces: Graphic, Network, Sound and Input. All interfaces have several (parts plattform independent) wrappers which can be choosen as needed.

dBrowser is a PHP/MySQL/PostgreSQL framework/code generator aimed at web/database application developers.

A PHP class library for writing powerfull reloadless web user interfaces using Ajax (DHTML+server-side) style

A cross-platform GUI, new language (eC), and 3D engine.

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.

jwx! is a Java binding to the wxWidgets GUI toolkit.

nano is a light-weight JavaScript framework for building rich UI in web applications. Its highly extensible design lets you easily add your own functionality to the API with plugins. Visit http://www.nanojs.org for more information.

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.