Open Source User Interface (UI) Software

Browse free open source User Interface (UI) software and projects for Mobile Operating Systems and Linux 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: 48 This Week
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  • 2
    guiscrcpy

    guiscrcpy

    Full fledged GUI integration for the Android screen mirroring system

    A simple, pluggable, graphical user interface for the fastest Android screen mirroring software, scrcpy. guiscrcpy is a multiplatform, ready-to-use GUI layer for Android to PC screen mirroring written in the advancing programming language python3 for the most award-winning open-source android screen mirroring system.
    Downloads: 43 This Week
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  • 3
    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: 33 This Week
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  • 4
    Intellij rainbow brackets

    Intellij rainbow brackets

    Rainbow Brackets for IntelliJ based IDEs/Android Studio/HUAWEI DevEco

    Compatible with IntelliJ IDEA, PhpStorm, WebStorm, PyCharm, RubyMine, AppCode, CLion, Gogland, DataGrip, Rider, MPS, Android Studio, HUAWEI DevEco Studio, DataSpell, Code With Me. Supports Java, Scala, Clojure, Kotlin, Python, Haskell, Agda, Rust, JavaScript, TypeScript, Erlang, Go, Groovy, Ruby, Elixir, ObjectiveC, PHP, HTML, XML, SQL, Apex language, C#, Dart, Pug/Jade, Bash, Vue.js, C# Razor Pages, GLSL(the OpenGL Shading Language), Go Template, C++, C, etc. Eliminate context switching and costly distractions. Create and merge PRs and perform code reviews from inside your IDE while using jump-to-definition, your keybindings, and other IDE favorites. If you didn't like the built-in colors, or want some new color but don't want to try out and pick colors. Please use color generator. And you can use the color generator and config your number of colors at the same time.
    Downloads: 19 This Week
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  • 5
    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: 9 This Week
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  • 6
    plow

    plow

    A high-performance HTTP benchmarking tool

    Plow is an HTTP(S) benchmarking tool, written in Golang. It uses excellent fast HTTP instead of Go's default net/http due to its lightning-fast performance. Plow runs at specified connections (option -c) concurrently and real-time records summary statistics, histogram of execution time and calculates percentiles to display on Web UI and terminal. It can run for a set duration( option -d), for a fixed number of requests(option -n), or until Ctrl-C is interrupted. The implementation of real-time computing Histograms and Quantiles using stream-based algorithms inspired by Prometheus with low memory and CPU bounds. so it's almost no additional performance overhead for benchmarking.
    Downloads: 6 This Week
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  • 7
    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: 5 This Week
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  • 8
    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: 3 This Week
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  • 9
    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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  • 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: 1 This Week
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  • 11
    GUI-lite

    GUI-lite

    The smallest header-only GUI library(4 KLOC) for all platforms

    The smallest header-only GUI library (4 KLOC) for all platforms. Cloud + IoT Solution: master your IoT business all over the world. Multi-language supports UTF-8; Playback Video. Toolkit for building font/image resources. Code Telemetry and Analysis in real-time (remove .sh/.bat files if dislike sharing). Even a C beginner could master GUI-lite quickly. The source code only uses basic C++ features (class, virtual function). We chose C++ as it could make the code size significantly smaller and easier to read. Work smoothly with 3rd party frameworks(Qt/MFC/Winform/Cocoa/Web). Zero dependency, 100% build pass & runnable. Click the demo you like, and run it on your hardware.
    Downloads: 1 This Week
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  • 12
    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: 1 This Week
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  • 13
    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 .
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    Downloads: 24 This Week
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  • 14
    ChineseChessControl
    中国象棋控件
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    Downloads: 13 This Week
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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: 13 This Week
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  • 16
    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.
    Downloads: 6 This Week
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  • 17
    YouTube Downloader ArmoMan

    YouTube Downloader ArmoMan

    An android application to download audio (mp3) from YouTube videos.

    An android application to download audio (mp3) from YouTube videos and from playlists. YouTube Downloader ArmoMan is an intuitive Android application designed to empower users to effortlessly extract high-quality MP3 audio from YouTube videos and playlists. With a user-friendly interface and a host of convenient features, this app simplifies the process of downloading and enjoying your favorite YouTube content in audio format. Download from SourceForge or GitHub. GitHub download page: https://github.com/ArmoMan/YouTube-Downloader-ArmoMan/releases GitHub: https://github.com/ArmoMan/YouTube-Downloader-ArmoMan Please, if there are bugs, feel free to contact us.
    Downloads: 2 This Week
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  • 18
    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: 1 This Week
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  • 19
    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
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  • 20
    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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  • 21
    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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  • 22
    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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  • 23
    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: 0 This Week
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  • 24
    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: 0 This Week
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  • 25
    Douya Bean sprouts

    Douya Bean sprouts

    A Material Design app for douban.com

    The open source Material Design Douban client. Among all people who directly access Douban, the most common and consistent usage is around ratings, comments, discoveries, and discussions around movies, TV, books, records, and events (what we call "items"). We will use the ratings and comments that are synchronized with the website as a starting point and basis to reconstruct the discovery and discussion around personal interests on the mobile phone. Douban is never a single website, and the usage of Douban is naturally different. Douban is used to obtain information, but whether the acquisition of information is based on entries and algorithms, or based on neighbors and people, this issue has probably remained unresolved in the multiple revisions of Douban. Douban Broadcasting has been one of the few Android Design applications in China a few years ago. Actively express the characteristics of Douban, such as broadcasting, neighbors, Douyou, etc.
    Downloads: 0 This Week
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