Open Source User Interface (UI) Software

Browse free open source User Interface (UI) software and projects for Apple iPhone and Mac below. Use the toggles on the left to filter open source User Interface (UI) software by OS, license, language, programming language, and project status.

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  • 1
    Kivy

    Kivy

    Innovative user interfaces made easy

    Kivy is an open source, cross-platform UI framework that lets you develop applications that make use of innovative, multi-touch user interfaces. Written in Python with a graphics engine built over OpenGL ES 2, Kivy supports various input devices and protocols, and gives you access to over 20 widgets that are all highly extensible and have built-in multi-touch support. You can run the same codebase on Mac, Windows, Linux, Android and iOS. Kivy is 100% free and open source with a professionally developed and used toolkit, as well as a stable framework and well-documented API, so you can be confident in using it in a commercial product.
    Downloads: 46 This Week
    Last Update:
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  • 2
    JavaCV

    JavaCV

    Java interface to OpenCV, FFmpeg, and more

    JavaCV uses wrappers from the JavaCPP Presets of commonly used libraries by researchers in the field of computer vision (OpenCV, FFmpeg, libdc1394, FlyCapture, Spinnaker, OpenKinect, librealsense, CL PS3 Eye Driver, videoInput, ARToolKitPlus, flandmark, Leptonica, and Tesseract) and provides utility classes to make their functionality easier to use on the Java platform, including Android. JavaCV also comes with hardware accelerated full-screen image display (CanvasFrame and GLCanvasFrame), easy-to-use methods to execute code in parallel on multiple cores (Parallel), user-friendly geometric and color calibration of cameras and projectors (GeometricCalibrator, ProCamGeometricCalibrator, ProCamColorCalibrator), detection and matching of feature points (ObjectFinder), a set of classes that implement direct image alignment of projector-camera systems (mainly GNImageAligner, ProjectiveTransformer, ProjectiveColorTransformer, ProCamTransformer, and ReflectanceInitializer), and more.
    Downloads: 15 This Week
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  • 3
    Avalonia

    Avalonia

    A cross-platform UI framework for .NET

    Avalonia is a cross-platform UI framework for dotnet, providing a flexible styling system and supporting a wide range of Operating Systems such as Windows, Linux, macOS. Avalonia is mature and production-ready. We also have in beta release support for iOS, Android and in early stages support for browsers via WASM. Avalonia is open source, free to use, and always will be. Clone the source today to dig deeper. The free VS extension provides everything needed to start, including a XAML previewer. JetBrains deep understanding of Avalonia shines through with rich Rider and R# support. Deploy to the platforms you care about with ease. Leverage existing knowledge, code and packages to kickstart your project. Get the support your project needs with one of our commercial support agreements. Help you can count on. JetBrains delivers huge productivity gains for Avalonia developers.
    Downloads: 8 This Week
    Last Update:
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  • 4
    E-commerce Complete Flutter UI

    E-commerce Complete Flutter UI

    The FlutterShop template makes it easier to develop an e-commerce app

    This project is a complete e-commerce application UI built with Flutter, showcasing every essential screen in a modern shopping experience. It includes layouts for onboarding, product listings, categories, detailed product pages, carts, checkout flows, and user profile sections. The UI follows clean, professional design patterns with attention to consistent spacing, typography, and component reuse. Interactive elements like carousels, tabs, and responsive grids are integrated to simulate real-world app behavior. Though it doesn’t implement backend functionality, the structure allows developers to easily plug in APIs or Firebase for a production-ready app. Its purpose is both to provide inspiration for design and to act as a boilerplate for developers starting an e-commerce project.
    Downloads: 5 This Week
    Last Update:
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    React Native Navigation

    React Native Navigation

    A complete native navigation solution for React Native

    React Native Navigation is a module, dependent on and intended to be used alongside React Native, so some experience with it and knowledge of core concepts is required. We also assume you are working on a Mac with XCode and Android Studio installed and setup. You can also make it work in a Linux distribution, of course, but in that case bear in mind that some sections of the docs that deal with iOS might not be relevant to you. When your app is launched for the first time, the bundle is parsed and executed. At this point you need to display your UI. To do so, listen to the appLaunched event and call Navigation.setRoot when that event is received. When your app is launched, RN makes sure JS context (which is what enables you to execute JavaScript code) is running. There are quite a few differences between iOS and Android in this regard.
    Downloads: 4 This Week
    Last Update:
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  • 6
    Cinder

    Cinder

    Community-developed library for professional-quality creative coding

    Cinder is a free and open source library for professional-quality creative coding in C++. Cinder is available under the BSD License for macOS and Windows. The latest version is 0.9.2. To keep up-to-date with Cinder’s development, consider working from the github repository directly. Cinder is a C++ library for programming with aesthetic intent - the sort of development often called creative coding. This includes domains like graphics, audio, video, and computational geometry. Cinder is cross-platform, with official support for macOS, Windows, Linux, iOS, and Windows UWP. Cinder is production-proven, powerful enough to be the primary tool for professionals, but still suitable for learning and experimentation. Full keyboard, mouse (including scroll wheel), window, and file drag and drop.
    Downloads: 3 This Week
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  • 7
    Flutter UI Nice

    Flutter UI Nice

    More than 130+ pages in this beautiful app

    flutter-ui-nice is a collection of Flutter UI examples and clones that replicate popular mobile app designs. It includes sample implementations of login screens, shopping flows, media apps, dashboards, and social layouts. The goal is to give developers a reference for how to achieve common UI patterns using Flutter widgets and theming. Each example is designed to be clean, responsive, and easy to adapt into production codebases. The repository is particularly helpful for beginners who want hands-on guidance on structuring real screens instead of only isolated widgets. It serves as both a design gallery and a practical teaching tool, showing how Flutter can mimic polished, industry-level designs.
    Downloads: 3 This Week
    Last Update:
    See Project
  • 8
    LunarCalendar

    LunarCalendar

    Use Qt write lunar calendar.

    Use Qt write lunar calendar. The repository is only read mirror of github. Main repository: https://github.com/KangLin/LunarCalendar .
    Downloads: 70 This Week
    Last Update:
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  • 9
    DivKit

    DivKit

    DivKit is an open source Server-Driven UI (SDUI) framework

    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.
    Downloads: 2 This Week
    Last Update:
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  • 10
    Flutter Responsive Admin Panel

    Flutter Responsive Admin Panel

    Responsive Admin Panel or Dashboard using Flutter

    This is a responsive admin/dashboard UI template built in Flutter. It is designed to work across platforms (web, desktop, mobile) and offers prebuilt UI elements (charts, tables, cards, etc.) so developers can use it as a backend UI scaffold.
    Downloads: 2 This Week
    Last Update:
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  • 11
    Homebridge Config UI X

    Homebridge Config UI X

    The Homebridge UI. Monitor, configure and backup Homebridge

    The Homebridge UI. Monitor, configure and backup Homebridge from a browser. Homebridge Config UI X is a web-based management tool for Homebridge that allows you to manage all aspects of your Homebridge setup. Install and configure Homebridge plugins. Edit the Homebridge config.json with advanced JSON syntax checking and structure validation. Visual configuration for over 450 plugins (no manual config.json editing required) Monitors your Homebridge server via a fully customizable widget-based dashboard. View the Homebridge logs. View and control Homebridge accessories. Restart Homebridge. Backup and Restore your Homebridge instance and more. Homebridge Config UI X also provides a tool called hb-service which makes it easy to setup Homebridge as a service on Linux/Raspbian, macOS and Windows 10. The dashboard is widget-based and completely customizable with a number of themes available.
    Downloads: 2 This Week
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  • 12
    ChineseChessControl
    中国象棋控件
    Downloads: 43 This Week
    Last Update:
    See Project
  • 13
    CloudyTabs

    CloudyTabs

    CloudyTabs is a simple menu bar application that lists your iCloud Tab

    CloudyTabs is a macOS menu bar app that lists all iCloud Safari tabs from other devices. It lets users quickly open remote Safari tabs without opening Safari itself, enhancing workflow for users who work across multiple Apple devices.
    Downloads: 1 This Week
    Last Update:
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  • 14
    Ice Menu Bar Manager

    Ice Menu Bar Manager

    Powerful menu bar manager for macOS

    Ice is a powerful menu bar management tool. While its primary function is hiding and showing menu bar items, it aims to cover a wide variety of additional features to make it one of the most versatile menu bar tools available.
    Downloads: 1 This Week
    Last Update:
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  • 15
    Easy-HotSpot

    Easy-HotSpot

    A super easy WiFi hotspot user management utility for Mikrotik router

    Easy HotSpot, A super easy WiFi hotspot user management utility for Mikrotik RouterOS based Router devices and works using the PHP PEAR2 API client by boenrobot. This PHP/MySql/Bootstrap based package can be installed in any supporting OS in a local webserver of the client or in any internet based webservers of choice. Put the contents/source code in the root or in a sub folder of the host/domain, as required. A MySql database need to be created in order to work, but the package will create the database, if one doesn't exist on initialisation. The details of the database need to be given in the dbconfig.php file by editing it. The details of the router device also need to be entered in the config.php file prior to operations. A preliminary visual documentation is available at http://hotspot.zetozone.com Easy HotSpot is suitable for WiFi hotspots of any size and capacity, but equipped with a MikroTik routerOS based device.
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    Downloads: 6 This Week
    Last Update:
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  • 16
    Swing ME

    Swing ME

    Java UI Framework for Desktop/iOS/Android

    A Pure Java implementation of Swing GUI, with Layouts, Borders, Renderers and lots of components including inline TextField, Buttons, Window, TabbedPane and many others. ALL visual and behavioural aspects can be fully customised of ANY component.
    Downloads: 3 This Week
    Last Update:
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  • 17
    ZED OS

    ZED OS

    ZED OS the clone of Windows XP

    ZED OS is a portuguese Linux based distribution (remaster of Ubuntu Mate). It was designed for users who want an innovative system. With both 3D and 2D interfaces you'll be able to chosse the better one according to your hardware/needs. It's Web Based and inspired in Windows XP from Microsoft
    Downloads: 1 This Week
    Last Update:
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  • 18
    Airtest

    Airtest

    UI Automation Framework for Games and Apps

    ¿Airtest provides cross-platform APIs, including app installation, simulated input, assertion and so forth. Airtest uses image recognition technology to locate UI elements so that you can automate games and apps without injecting any code. Airtest cases can be easily run on large device farms, using the command line or python API. HTML reports with detailed info and screen recording allow you to quickly locate failure points. NetEase builds Airlab on top of the Airtest Project. AirtestIDE is an out-of-the-box GUI tool that helps to create and run cases in a user-friendly way. AirtestIDE supports a complete automation workflow. Poco adds the ability to directly access object(UI widget) hierarchy across the major platforms and game engines. It allows writing instructions in Python, to achieve more advanced automation.
    Downloads: 0 This Week
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  • 19
    Best Flutter UI Templates

    Best Flutter UI Templates

    completely free for everyone. Its build-in Flutter Dart

    This repository is a large collection of high-quality Flutter UI templates covering a wide variety of app categories. It includes templates for e-commerce, fitness, hotel booking, chat/messaging, finance, and more. Each template provides ready-made screens with polished visuals, iconography, and color schemes designed for production-level apps. The layouts are responsive and customizable, helping developers save time when prototyping or launching apps. The project is structured modularly so developers can pick and choose specific screens or flows instead of using the entire template. It’s one of the most comprehensive UI repositories for Flutter, serving both as a design inspiration library and a starting point for actual app development.
    Downloads: 0 This Week
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  • 20
    CSS-Vise

    CSS-Vise

    A lightweight, minimal and mature vanilla CSS framework.

    CSS-Vise A lightweight, minimal and mature vanilla CSS framework built with care. It can be used as a primary framework or as a secondary one alongside any other framework .Check this demo page for a quick showcase http://appforgelab.com/vise Why Vise ? There is dozens of CSS frameworks available but why Vise ? - You may not need a heavy framework to build a great user experience. - You may want to use more than one framework on the same HTML document. - You may want a smarter and easier to learn minimal framework. - You need a library that is supported by 98% of web browsers. For docs and more visit Vise's github repository https://github.com/Appforge-lab/CSS-Vise
    Downloads: 0 This Week
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  • 21
    CardParts

    CardParts

    A reactive, card-based UI framework built on UIKit for iOS developers

    CardParts is the second-generation Card UI framework for the iOS Mint application. This version includes many updates to the original card part framework, including improved MVVM, data binding (via RxSwift), use of stack views and self-sizing collection views instead of sizing cells, 100% swift and much more. The result is a much simpler, easier-to-use, more powerful, and easier-to-maintain framework. This framework is currently used by the iOS Mint application and the iOS Turbo application. There are two major parts to the card parts framework. The first is the CardsViewController which will display the cards. It is responsible for displaying cards in the proper order and managing the lifetime of the cards. The second major component is the cards themselves which are typically instances of CardPartsViewController. Each instance of CardPartsViewController displays the content of a single card, using one or more card parts (more details later).
    Downloads: 0 This Week
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  • 22
    EGOCache

    EGOCache

    Fast Caching for Objective-C (iPhone & Mac Compatible)

    EGOCache is a simple, thread-safe key-value cache store for macOS, iOS, tvOS, and watchOS. It has native support for NSString, UIImage, NSImage, and NSData, but can store anything that implements NSCoding. All cached items expire after the timeout, which by default, is one day.
    Downloads: 0 This Week
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  • 23
    FMDB

    FMDB

    A Cocoa / Objective-C wrapper around SQLite

    This is an Objective-C wrapper around SQLite. FMDB 2.7 attempts to support a more natural interface. This represents a fairly significant change for Swift developers (audited for nullability; shifted to properties in external interfaces where possible rather than methods; etc.). For Objective-C developers, this should be a fairly seamless transition (unless you were using the ivars that were previously exposed in the public interface, which you shouldn't have been doing, anyway!). FMDB 2.7 is largely the same as prior versions, but has been audited for nullability. For Objective-C users, this simply means that if you perform a static analysis of your FMDB-based project, you may receive more meaningful warnings as you review your project, but there are likely to be few, if any, changes necessary in your code. For Swift users, this nullability audit results in changes that are not entirely backward compatible with FMDB 2.6, but is a little more Swifty.
    Downloads: 0 This Week
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  • 24
    Flutter Local Notifications plugin

    Flutter Local Notifications plugin

    A Flutter plugin for displaying local notifications on Android, iOS

    A Flutter plugin for displaying local notifications on Android, iOS, macOS and Linux. Code for the cross-platform facing plugin used to display local notifications within Flutter applications. Code for the common platform interface. These can be found in the corresponding directories within the same name. Most developers are likely here as they are looking to use the flutter_local_notifications plugin. There is a readme file within each directory with more information.
    Downloads: 0 This Week
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  • 25
    Flutter Wonderous App

    Flutter Wonderous App

    A showcase app for the Flutter SDK

    The Wonderous App is an award-winning showcase project that presents the Seven Wonders of the World through an immersive Flutter experience. It highlights Flutter’s ability to combine rich animations, custom graphics, and seamless navigation across platforms. The app includes detailed multimedia content—stories, galleries, maps, and 3D-like transitions—that make cultural heritage engaging and interactive. Its design emphasizes storytelling, using typography, colors, and motion to guide users through historical journeys. From a technical standpoint, it demonstrates advanced layout techniques, gesture handling, and integration of complex visual assets in Flutter. It is part of Flutter’s official examples, intended to inspire developers and designers about what’s possible beyond basic apps.
    Downloads: 0 This Week
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