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: 124 This Week
    Last Update:
    See Project
  • 2
    Droid-ify

    Droid-ify

    F-Droid client with Material UI

    A quick material F-Droid client.
    Downloads: 54 This Week
    Last Update:
    See Project
  • 3
    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: 54 This Week
    Last Update:
    See Project
  • 4
    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
    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: 41 This Week
    Last Update:
    See Project
  • 6
    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: 34 This Week
    Last Update:
    See Project
  • 7
    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: 16 This Week
    Last Update:
    See Project
  • 8
    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: 15 This Week
    Last Update:
    See Project
  • 9
    Sonic iOS

    Sonic iOS

    Bridge of iOS Devices by usbmuxd

    sonic-ios-bridge is based on gidevice as the underlying iOS communication protocol. On this basis, peripheral auxiliary functions are enriched, such as automatic mounting of developer images, wda installation detection, iOS model mapping, direct use of command lines, etc. To create a command-line iOS debugging tool that executes xctest, WebDriverAgentRunner, performance monitoring and other special functions across platforms. So you can use sib to perform cross-terminal iOS automation, iOS device communication, and iOS device testing without Mac. Whether gidevice or tidevice, the main principle is to communicate with usbmux. The role of usbmux is to realize cross-platform communication with iOS device services. On the Mac, usbmuxd is a service of Apple, which is mainly used to implement TCP connections on the USB protocol. Both iTunes and Xcode use this service, so the Windows system needs to install iTunes.
    Downloads: 9 This Week
    Last Update:
    See Project
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  • 10
    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: 7 This Week
    Last Update:
    See Project
  • 11
    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: 7 This Week
    Last Update:
    See Project
  • 12
    yubiswitch

    yubiswitch

    OSX status bar application to enable/disable Yubikey Nano

    yubiswitch is a macOS application that enables users to easily toggle the USB interface of YubiKey devices. It allows enabling or disabling YubiKey on-demand for enhanced physical security, preventing unauthorized use of the key.
    Downloads: 7 This Week
    Last Update:
    See Project
  • 13
    ActionSheetPicker

    ActionSheetPicker

    Quickly reproduce the dropdown UIPickerView / ActionSheet

    Quickly reproduce the dropdown UIPickerView / ActionSheet functionality from Safari on iPhone/ iOS / CocoaTouch. Easily present an ActionSheet with a PickerView, allowing the user to select from a number of immutable options. If you prefer not to use either of the aforementioned dependency managers, you can integrate ActionSheetPicker-3.0 into your project manually.
    Downloads: 5 This Week
    Last Update:
    See Project
  • 14
    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: 5 This Week
    Last Update:
    See Project
  • 15
    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
    Last Update:
    See Project
  • 16
    Parchment

    Parchment

    A paging view with a highly customizable menu

    New beta is out! Features a new and improved API for SwiftUI. Try it now. Parchment lets you page between view controllers while showing any type of generic indicator that scrolls along with the content. The menu items are built using UICollectionView, which means you can display pretty much whatever you want. You can even subclass the layout to create completely custom behaviors. Parchment only allocates view controllers when they’re needed, meaning if you have a lot of view controllers you don’t have to initialize them all up-front. Because view controllers are only allocated as you are scrolling, you can create data sources that are infinitely large. This is perfect for things like calendars.
    Downloads: 5 This Week
    Last Update:
    See Project
  • 17
    AutoScrollLabel

    AutoScrollLabel

    Provides marquee like UILabel scrolling

    AutoScrollLabel is a subclass of UILabel that automatically scrolls its text horizontally when the content is too wide to fit within the label’s frame. It’s ideal for displaying long pieces of text, such as song titles or notifications, in a limited space. The component is lightweight and easy to use, making it perfect for iOS apps needing marquee effects.
    Downloads: 4 This Week
    Last Update:
    See Project
  • 18
    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: 4 This Week
    Last Update:
    See Project
  • 19
    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: 4 This Week
    Last Update:
    See Project
  • 20
    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: 4 This Week
    Last Update:
    See Project
  • 21
    Playbook

    Playbook

    A library for isolated developing UI components

    A library for isolated developing UI components and automatically taking snapshots of them. Playbook is a library that provides a sandbox for building UI components without having to worry about application-specific dependencies, strongly inspired by Storybook for JavaScript in web-frontend development. Components built by using Playbook can generate a standalone app as living style guide. This allows you to not only review UI quickly but also deliver more robust designs by separating business logics out of components. Besides, snapshots of each component can be automatically generated by unit tests, and visual regression testing can be performed using arbitrary third-party tools. For complex modern app development, it’s important to catch UI changes more sensitively and keep improving them faster. With the Playbook, you don't have to struggle through preparing the data and spend human resources for manual testings.
    Downloads: 4 This Week
    Last Update:
    See Project
  • 22
    Push Plugin for NativeScript

    Push Plugin for NativeScript

    Contains the source code for the Push Plugin

    The nativescript-push-plugin facilitates the integration of push notification services into NativeScript applications, enabling developers to send and receive push notifications across iOS and Android platforms.
    Downloads: 4 This Week
    Last Update:
    See Project
  • 23
    noUiSlider

    noUiSlider

    JavaScript range slider with multi-touch and keyboard support

    noUiSlider is a lightweight, ARIA-accessible JavaScript range slider with multi-touch and keyboard support. It is fully GPU animated: no reflows, so it is fast; even on older devices. It also fits wonderfully in responsive designs and has no dependencies. noUiSlider is a lightweight range slider with multi-touch support and a ton of features. It supports non-linear ranges, requires no external dependencies, has keyboard support, and it works great in responsive designs. Have you tried this documentation on your phone? It can be used for free and without any attribution, in any personal or commercial project. An extensive documentation, including examples, options and configuration details, is available in the website. GPU animated, no reflows, so fast; even on older devices. All modern browsers and IE > 9 are supported.
    Downloads: 4 This Week
    Last Update:
    See Project
  • 24
    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: 4 This Week
    Last Update:
    See Project
  • 25
    Advanced RecyclerView

    Advanced RecyclerView

    RecyclerView extension library which provides advanced features

    This RecyclerView extension library provides Google's Inbox app like swiping, Play Music app like drag-and-drop sorting and expandable item features. Works on API level 14 or later. Reduces library conflicts, easy to integrate with existing code. Looks difficult at a glance, but gives great flexibility like the original RecyclerView. Swipe dismiss and swipe pinning operation. (like Google's Inbox app). Smooth item reordering with linear list (LinearLayoutManager). It behaves like the playlist of Google's Play Music app. A list with collapsible groups and its children. This feature is a port of the ExpandableListView of Android framework. All swipe, drag and drop, expand and wrapper adapter features work together! The ItemAnimator behaves exactly the same as the default SimpleItemAnimator, but its code is refactored. Easier to customize!
    Downloads: 3 This Week
    Last Update:
    See Project
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