Open Source Mobile Operating Systems User Interface (UI) Software

User Interface (UI) Software for Mobile Operating Systems

Browse free open source User Interface (UI) software and projects for Mobile Operating Systems 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
    Popcorn Time for iOS

    Popcorn Time for iOS

    https://github.com/PopcornTimeTV/PopcornTimeTV

    PopcornTimeTV was an Apple TV, iPhone and iPad application to torrent movies and tv shows for streaming. Since 2016, this project has grown exponentially - both in its user base and in its functionality. However, the team size has gone the other way. We went from having 13+ developers on the team to 1 developer and 1 designer, both of whom have lives and projects outside of Popcorn Time. We have decided that we have given our all to this project and it's time for us to move on to pursue greater things. There is no doubt that this comes with a heavy heart as we have learned so much from this project and watched it grow from this simple torrenting app that could only play 720p video, to what it is today. All that being said, we do not want this project to just die after we leave. The size of the project might be a bit daunting to an unseasoned developer but the app is extremely stable and packed with almost every feature you could need.
    Downloads: 135 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: 55 This Week
    Last Update:
    See Project
  • 3
    Droid-ify

    Droid-ify

    F-Droid client with Material UI

    A quick material F-Droid client.
    Downloads: 51 This Week
    Last Update:
    See Project
  • 4
    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: 48 This Week
    Last Update:
    See Project
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  • 5
    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
    Last Update:
    See Project
  • 6
    Cowabunga

    Cowabunga

    iOS 14.0-15.7.1 & 16.0-16.1.2 MacDirtyCow ToolBox

    A Jailed toolbox application for iOS 14.0-15.7.1 and 16.0-16.1.2 using CVE-2022-46689. Enable Notifications and set Location Services to Always to keep the app running in the background, keep the dock and folder background hidden, and prevent some sound effects from reverting. Some changes are permanent on iOS 14.0-14.8.1. IPA available in the Releases section.
    Downloads: 17 This Week
    Last Update:
    See Project
  • 7
    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: 12 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: 9 This Week
    Last Update:
    See Project
  • 9
    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: 8 This Week
    Last Update:
    See Project
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  • 10
    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: 5 This Week
    Last Update:
    See Project
  • 11
    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: 4 This Week
    Last Update:
    See Project
  • 12
    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: 4 This Week
    Last Update:
    See Project
  • 13
    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: 4 This Week
    Last Update:
    See Project
  • 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: 4 This Week
    Last Update:
    See Project
  • 15
    OneSignal-iOS-SDK

    OneSignal-iOS-SDK

    OneSignal is a free push notification service for mobile apps

    OneSignal iOS SDK is a leading solution for implementing push notifications, in-app messaging, and customer engagement features in iOS apps. It offers a rich set of tools for targeted messaging, user segmentation, and analytics. OneSignal is widely used for improving user retention and delivering personalized content directly to users.
    Downloads: 4 This Week
    Last Update:
    See Project
  • 16
    Maestro

    Maestro

    Painless Mobile UI Automation

    Maestro is the simplest and most effective mobile UI testing framework. Maestro is built on learnings from its predecessors (Appium, Espresso, UIAutomator, XCTest) and allows you to easily define and test your Flows. Built-in tolerance to flakiness. UI elements will not always be where you expect them, screen tap will not always go through, etc. Maestro embraces the instability of mobile applications and devices and tries to counter it. Built-in tolerance to delays. No need to pepper your tests with sleep() calls. Maestro knows that it might take time to load the content (i.e. over the network) and automatically waits for it (but no longer than required). Blazingly fast iteration. Tests are interpreted, no need to compile anything. Maestro is able to continuously monitor your test files and rerun them as they change.
    Downloads: 3 This Week
    Last Update:
    See Project
  • 17
    SwiftMessages

    SwiftMessages

    A very flexible message bar for iOS written in Swift

    SwiftMessages is a very flexible view and view controller presentation library for iOS. Message views and view controllers can be displayed at the top, bottom, or center of the screen, or behind navigation bars and tab bars. There are interactive dismiss gestures including a fun, physics-based one. Multiple background dimming modes. And a lot more! In addition to the numerous configuration options, SwiftMessages provides several good-looking layouts and themes. But SwiftMessages is also designer-friendly, which means you can fully and easily customize the view.
    Downloads: 3 This Week
    Last Update:
    See Project
  • 18
    ZoomLayout

    ZoomLayout

    2D zoom and pan behavior for View hierarchies, images, video streams

    A collection of Android components that support zooming and panning of View hierarchies, images, video streams, and much more. In fact, ZoomLayout, ZoomImageView and ZoomSurfaceView are just very simple implementations of the internal ZoomEngine. The Zoom engine lets you animate everything through constant updates, as long as you feed it with touch events, with a Matrix-based mechanism that makes it very flexible.
    Downloads: 3 This Week
    Last Update:
    See Project
  • 19
    BetterSegmentedControl

    BetterSegmentedControl

    An easy to use, customizable replacement for UISegmentedControl

    BetterSegmentedControl is an easy-to-use, customizable replacement for UISegmentedControl and UISwitch written in Swift. If you prefer not to use CocoaPods or Swift Package Manager, you can integrate BetterSegmentedControl into your project manually. You can find several ways of using it, such as by designing it in a Storyboard file or creating it in code in the example project. Can be used as a segmented control or switch. Plethora of customizable options from colors to insets, radii and animations. Use text or icons as segments, or add your own custom segments. Designable straight in Interface Builder.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 20
    CollectionKit

    CollectionKit

    Reimagining UICollectionView

    A modern Swift framework for building composable data-driven collection view. To start using CollectionKit, use CollectionView in place of UICollectionView. CollectionView is CollectionKit's alternative to UICollectionView. You give it a Provider object that tells CollectionView how to display a collection.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 21
    FlexLayout

    FlexLayout

    Swift interface to the optimized facebook/yoga flexbox implementation

    FlexLayout adds a nice Swift interface to the highly optimized Yoga flexbox implementation. Concise, intuitive & chainable syntax. Flexbox is an incredible improvement over UIStackView. It is simpler to use, much more versatile and amazingly performant. FlexLayout is a companion of PinLayout. They share a similar syntax and method names. PinLayout is a layout framework greatly inspired by CSS absolute positioning, it is particularly useful for greater fine control and animations. It gives you full control by layouting one view at a time (simple to code and debug).
    Downloads: 2 This Week
    Last Update:
    See Project
  • 22
    Flutter InAppWebView Plugin

    Flutter InAppWebView Plugin

    A Flutter plugin that allows you to add an inline webview

    A Flutter plugin that allows you to add an inline WebView, to use a headless WebView, and to open an in-app browser window. Adding the InAppWebView widget into your app is very simple. It’s just a widget like any other Flutter widget. Use InAppBrowser or ChromeSafariBrowser to open an in-app browser! ChromeSafariBrowser is based on Chrome Custom Tabs on Android and on SFSafariViewController on iOS. Create a Class that extends the InAppBrowser/ChromeSafariBrowser Class in order to override the callbacks to manage the browser events. It can be used to run a WebView in background without attaching an InAppWebView to the widget tree. As InAppWebView, it has the same options and events. Use InAppWebViewController to control the headless WebView instance.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 23
    Fritter

    Fritter

    A privacy-friendly Twitter frontend for mobile devices

    Fritter is an open-source frontend for Twitter, focusing on giving you the best experience and keeping your data private, local, and in your hands. No tracking, with all data local. Save tweets locally and offline. See what's trending in the world. Light and Dark themes, protect your eyes. Follow and group accounts. View results without needing to vote. Find users and tweets.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 24
    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
    Last Update:
    See Project
  • 25
    InstagramKit

    InstagramKit

    The unofficial Instagram iOS SDK

    An extensive Objective C wrapper for the Instagram API, completely compatible with Swift. The framework is built atop AFNetworking’s blocks-based architecture and additionally, parses JSON data and creates model objects asynchronously so there’s absolutely no parsing on the main thread. It’s neat, fast and works like a charm. InstagramKit uses UICKeyChainStore as an optional sub-dependency for Keychain access. If you opt to use the optional pod, InstagramKit resumes your authenticated sessions across App launches, without needing any additional code. InstagramAppClientId is your App's Client Id and InstagramAppRedirectURL, the redirect URI which is obtained on registering your App on Instagram's Developer Dashboard. The redirect URI specifies where Instagram should redirect users after they have chosen whether or not to authenticate your application.
    Downloads: 2 This Week
    Last Update:
    See Project
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