Open Source Android User Interface (UI) Apps

User Interface (UI) Apps for Android

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Browse free open source User Interface (UI) apps and projects for Android below. Use the toggles on the left to filter open source User Interface (UI) apps 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: 50 This Week
    Last Update:
    See Project
  • 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: 47 This Week
    Last Update:
    See Project
  • 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: 45 This Week
    Last Update:
    See Project
  • 4
    Droid-ify

    Droid-ify

    F-Droid client with Material UI

    A quick material F-Droid client.
    Downloads: 42 This Week
    Last Update:
    See Project
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  • 5
    FlorisBoard

    FlorisBoard

    An open-source keyboard for Android which respects your privacy

    FlorisBoard is a free and open-source keyboard for Android 7.0+ devices. It aims to be modern, user-friendly, and customizable while fully respecting your privacy. Currently in early beta state.
    Downloads: 25 This Week
    Last Update:
    See Project
  • 6
    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: 10 This Week
    Last Update:
    See Project
  • 7
    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: 6 This Week
    Last Update:
    See Project
  • 8
    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: 4 This Week
    Last Update:
    See Project
  • 9
    Storybook

    Storybook

    The UI component explorer, develop, document, & test React, Vue, etc.

    Storybook is an open-source tool for building UI components and pages in isolation. It streamlines UI development, testing, and documentation. Storybook provides a sandbox to build UIs in isolation so you can develop hard-to-reach states and edge cases. Implement components and pages without needing to fuss with data, APIs, or business logic. Render components in key states that are tricky to reproduce in an app. Save use cases as stories in plain JavaScript to revisit during development, testing, and QA. Use addons to customize your workflow, automate testing, and integrate with your favorite tools. Stories are a pragmatic, reproducible way to keep track of UI edge cases. Write stories once then reuse them to power automated tests. Whenever you write a story you get a handy test case. Quickly browse stories to make sure your UI looks right. Pinpoint UI changes down to the pixel by comparing image snapshots of stories.
    Downloads: 4 This Week
    Last Update:
    See Project
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  • 10
    TapTargetView

    TapTargetView

    An implementation of tap targets from the Material Design guidelines

    An implementation of tap targets from Google's Material Design guidelines on feature discovery. Prompt users to try features or functionality that can be completed in a single tap, such as saving a location in a map app. Prompt users to try features or functionality that require more than one tap to complete, such as turning on automatic backup in a photo app. Feature discovery prompts have more impact when they are presented to the right users at contextually relevant moments. When presented to the wrong user at the wrong time, they can be intrusive and annoying. A user’s interaction with a message signals their satisfaction with it and informs when to show the next message. Feature discovery scenarios and app UIs have specific material design components. A feature discovery prompt focuses user attention on a specific UI element. It contains a tap target, indicated by a circular shape, which is surrounded by a larger area with a distinct background color.
    Downloads: 4 This Week
    Last Update:
    See Project
  • 11
    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: 3 This Week
    Last Update:
    See Project
  • 12
    Fomantic-UI

    Fomantic-UI

    Fomantic-UI is the community fork of Semantic-UI

    Fomantic is a development framework that helps create beautiful, responsive layouts using human-friendly HTML. Fomantic UI treats words and classes as exchangeable concepts. Classes use syntax from natural languages like noun/modifier relationships, word order, and plurality to link concepts intuitively. Get the same benefits as BEM or SMACSS, but without the tedium. Fomantic uses simple phrases called behaviors that trigger functionality. Any arbitrary decision in a component is included as a setting that developers can modify. Performance logging lets you track down bottlenecks without digging through stack traces. Fomantic comes equipped with an intuitive inheritance system and high-level theming variables that let you have complete design freedom. Develop your UI once, then deploy with the same code everywhere. The only dogma from this framework: everything arbitrary is mutable.
    Downloads: 3 This Week
    Last Update:
    See Project
  • 13
    QMUI Android

    QMUI Android

    UI library to improve the efficiency of Android UI development

    Solutions dedicated to improving the efficiency of project UI development. QMUI Android is designed to help quickly build an Android project with basic design restoration effects, and at the same time use the rich controls and compatible processing provided by itself, so that developers can focus on business needs without spending energy on the design of the basic code. Whether it is the creation of a new project or the maintenance of an existing project, development efficiency and project quality can be greatly improved. You only need to modify a configuration table to adjust the global style of the App, including component colors, navigation bars, dialog boxes, lists, etc. One modification takes effect globally. Provide a wealth of commonly used UI controls, such as BottomSheet, Tab, rounded ImageView, pull-down refresh, etc., easy to use and flexible, and supports custom control styles.
    Downloads: 3 This Week
    Last Update:
    See Project
  • 14
    Flutter Location

    Flutter Location

    A Flutter plugin to easily handle realtime location in iOS and Android

    A simple way to get the user's location without thinking about permission. This library aims at providing you with a simple way to get the user location without thinking about permission. It's also heavily configurable so you can easily get better performance or better battery. It currently supports Android, iOS, macOS and Web. Support for the remaining platforms is incoming.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 15
    GiftedChat

    GiftedChat

    The most complete chat UI for React Native

    See the files in example-slack-message for an example of how to override the default UI to make something that looks more like Slack, with usernames displayed and all messages on the left. Avatar as user's initials. Localized dates. Multi-line TextInput. InputToolbar avoiding keyboard. Redux support. System message. Quick Reply messages (bot). Typying indicatior react-native-typing-animation. If you decide to specify a text prop, GiftedChat will no longer manage its own internal text state and will defer entirely to your prop. This is great for using a tool like Redux, but there's one extra step you'll need to take, simply implement onInputTextChanged to receive typing events and reset events (e.g. to clear the text onSend). If you are using Create React Native App / Expo, no Android specific installation steps are required, you can skip this section. Otherwise, we recommend modifying your project configuration.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 16
    Ionic Framework

    Ionic Framework

    A powerful cross-platform UI toolkit for building native-quality apps

    A powerful cross-platform UI toolkit for building native-quality iOS, Android, and Progressive Web Apps with HTML, CSS, and JavaScript. With a low friction migration, Ionic 6 brings improved desktop support, new UI components, iOS/Android design enhancements, performance and bundling improvements, and so much more. Free and open-source, Ionic offers a library of mobile-optimized UI components, gestures, and tools for building fast highly interactive apps. Ionic’s UI components look great on all mobile devices and platforms. Start with pre-made components, typography, and a base theme that adapts to each platform. Ionic lets developers to ship apps to the app stores and as a PWA with a single code base. With Adaptive Styling, apps look and feel at home on every platform. Create, build, test, and deploy your app with the Ionic CLI. Take advantage of Live Reload, deployments, integrations, and even use your favorite JS framework’s CLI.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 17
    Litho

    Litho

    A declarative framework for building efficient UIs on Android

    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.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 18
    Semantic UI

    Semantic UI

    UI framework designed for theming

    Semantic UI is a development framework that lets you create beautiful, custom and responsive website layouts using human-friendly HTML. The syntax used is based on natural language, so concepts are linked intuitively. Semantic UI utilizes concise HTML, intuitive JavaScript and simplified debugging, making front-end development an absolute dream for developers. Semantic UI is partnered with popular frameworks React, Angular, Meteor, Ember and many others so you can easily integrate it and organize your UI layer with your application logic. Semantic UI comes with over 3,000 high level theming variables and just about every layout option you can think of, giving you complete design freedom. It also has over 50 UI components enabling you to build your entire site with just one stack and share your UI between a number of different projects.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 19
    Zulip Mobile

    Zulip Mobile

    Zulip mobile apps for Android and iOS

    Zulip for Windows is even better than Zulip on the web, with a cleaner look, tray integration, native notifications, and support for multiple Zulip accounts. Zulip Mobile is the official mobile Zulip client, supporting both iOS and Android.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 20
    Android-Bootstrap

    Android-Bootstrap

    Bootstrap style widgets for Android, with Glyph Icons

    Android Bootstrap is an Android library which provides custom views styled according to the Twitter Bootstrap Specification. This allows you to spend more time on development rather than trying to get a consistent theme across your app, especially if you are already familiar with the Bootstrap Framework. Create buttons that support Glyph icons, and are themeable using Bootstrap Brands. BootstrapButtonGroup Allows BootstrapButtons to be grouped together and their attributes controlled en masse. BootstrapProgressBar Displays progress in a bar from 0-100, and animates updates to the current progress. BootstrapLabel Displays non-clickable text in a widget similar to the BootstrapButton, sizable using H1-H6 elements. BootstrapCircleThumbnail Displays images in a center-cropped Circular View, themed with BootstrapBrand.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 21
    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: 1 This Week
    Last Update:
    See Project
  • 22
    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: 1 This Week
    Last Update:
    See Project
  • 23
    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: 1 This Week
    Last Update:
    See Project
  • 24
    Infinite Scroll

    Infinite Scroll

    Automatically add next page

    Infinite Scroll is a JavaScript plugin that automatically adds the next page, saving users from a full page load. You’ve likely seen it in use all over the web. The original version of Infinite Scroll was first released by Paul Irish 2008. It was a break-through work of front-end development, granting web developers a cutting edge experience via a user-friendly yet powerful jQuery plugin. That lineage scrolls on to this day. Infinite Scroll v4 supports Chrome 60+, Edge 79+, Firefox 55+, Safari 11+. For IE10 and Android 4 support, try Infinite Scroll v3. Infinite Scroll upholds URLs by changing them automatically as the user scrolls. Users can refresh the current page or return to a scrolled page and their position will be maintained. No more tears when you scroll 20 pages and accidentally hit refresh. Try out the full page demo.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 25
    Konsta UI

    Konsta UI

    Mobile UI components made with Tailwind CSS

    Pixel perfect mobile UI components built with Tailwind CSS. With iOS and Material Design components for React, Vue & Svelte. All Konsta UI components come with pixel-perfect native-like iOS and Material Design themes created using official design guidelines. Everything you need for your iOS and Android apps! Konsta UI is mostly designed to be used with "parent" frameworks like Ionic or Framework7. In this case, you use the "parent" framework as your app shell (routing, navigation, state management, native APIs, etc.) and Konsta UI components for inner pages/views UIs. Using it with frameworks like Capacitor and Cordova you can easily create real native apps with native look and feel.
    Downloads: 1 This Week
    Last Update:
    See Project
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