Open Source User Interface (UI) Software

Browse free open source User Interface (UI) software and projects for Apple iPhone and Android 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
    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: 16 This Week
    Last Update:
    See Project
  • 2
    Dioxus

    Dioxus

    Friendly React-like GUI library for desktop, web, mobile, and more

    Build reliable user interfaces that run anywhere. Introducing Dioxus, a React-like library for building fast, portable, and beautiful user interfaces with Rust. Runs on the web, desktop, mobile, and more. Easily describe the layout of your application with HTML or RSX syntax. Build encapsulated components that manage their own state, then compose them to make complex UIs. Components and hooks can be reused to render on the web, desktop, mobile, server, and more! 1st class support for asynchronous tasks, suspense for datafetching, and pausable coroutines. Eliminate a whole class of bugs at compile time with static typing for every library. Fearlessly refactor even the largest of apps with powerful compile-time guarantees. No more uncaught exceptions. Components can easily abort rendering without crashing the entire app. Comprehensive doc comments provide MDN hints and guides right under your fingertips.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 3
    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: 1 This Week
    Last Update:
    See Project
  • 4
    Apache Weex

    Apache Weex

    A framework for building Mobile cross-platform UI

    Weex is a framework for building performant mobile apps with modern web technology. Weex is using native components and native modules to take advantage of native rendering performance and platform capabilities. Both components and modules are pluggable and extendable. You can use a single codebase to generate different bundle files to running on both Webs, Android and iOS platforms. Native components and modules have a different implementation on each platform, but they all exposed the same API. Weex embraces the existing Web ecosystem, you can use modern front-end technology to develop your mobile apps. Weex supports most commonly used CSS properties and most popular front-end frameworks, such as Vue and Rax, maybe more in the future. Weex has been large-scale used in many super apps for a long time, served almost billions of people in total. Weex also derived many engineering products and platforms for industry development.
    Downloads: 0 This Week
    Last Update:
    See Project
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  • 5
    BottomBar

    BottomBar

    Custom view component that mimics the new Material Design pattern

    A custom view component that mimics the new Material Design Bottom Navigation pattern. You can add items by writing a XML resource file. The icons must be fully opaque, solid black color, 24dp and with no padding. For example, with Android Asset Studio Generic Icon generator, select "TRIM" and make sure the padding is 0dp. Define your tabs in an XML resource file. Then, add the BottomBar to your layout and give it a resource id for your tabs xml file. By default, the tabs don't do anything unless you listen for selection events and do something when the tabs are selected. This new version has cleaner code and better APIs. No more unnecessary stuff or spaghetti mess. Now the look, feel and behavior is defined in XML, as it should be. No more nasty regressions, thanks to the automated tests. Everything is a little different compared to earlier, but it's for the greater good!
    Downloads: 0 This Week
    Last Update:
    See Project
  • 6
    FirebaseUI for Android

    FirebaseUI for Android

    Optimized UI components for Firebase

    FirebaseUI is an open-source library for Android that allows you to quickly connect common UI elements to Firebase APIs. A compatible FirebaseUI client is also available for iOS. FirebaseUI has separate modules for using Firebase Realtime Database, Cloud Firestore, Firebase Auth, and Cloud Storage. To get started, see the individual instructions for each module. FirebaseUI is published as a collection of libraries separated by the Firebase API they target. Each FirebaseUI library has a transitive dependency on the appropriate Firebase SDK so there is no need to include those separately in your app. After the project is synchronized, we're ready to start using Firebase functionality in our app. There is a sample app in the app/ directory that demonstrates most of the features of FirebaseUI.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 7
    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: 0 This Week
    Last Update:
    See Project
  • 8
    Flutter ScreenUtil

    Flutter ScreenUtil

    Flutter screen adaptation, font adaptation, get screen information

    flutter_screenutil is a responsive design library for Flutter that helps developers create layouts adaptable to multiple screen sizes and pixel densities. It introduces APIs for setting responsive width, height, font sizes, and padding based on the device’s actual screen dimensions. This allows developers to design once and maintain consistent UI proportions across different Android and iOS devices. The package supports automatic scaling, orientation changes, and high-DPI screens without the need for hardcoded pixel values. It is widely used in production apps to reduce layout inconsistencies and improve accessibility. By handling screen adaptation systematically, it allows developers to focus on design and interaction rather than device-specific quirks.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 9
    Flutter UI Kit

    Flutter UI Kit

    Flutter app for collection of UI in a UIKit

    Flutter UI Kit by iampawan is a library of real-world Flutter UI templates—including e-commerce dashboards, shopping lists, login pages, animations, and more. It demonstrates clean code structure, modular design, and reusable components. Ideal for learning Flutter UI patterns and quickly prototyping app interfaces.
    Downloads: 0 This Week
    Last Update:
    See Project
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  • 10
    NativeScript-Drop-Down

    NativeScript-Drop-Down

    A NativeScript DropDown widget

    The NativeScript-Drop-Down plugin introduces a drop-down widget for NativeScript applications, enabling developers to present a list of options from which users can select, enhancing form inputs and selection interfaces.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 11
    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: 0 This Week
    Last Update:
    See Project
  • 12
    PushSharp

    PushSharp

    A server-side library for sending Push Notifications to iOS

    PushSharp is a server-side library for sending Push Notifications to iOS/OSX (APNS), Android/Chrome (GCM/FCM), Windows/Windows Phone, Amazon (ADM) and Blackberry devices! PushSharp v3.0+ is a complete rewrite of the original library, aimed at taking advantage of things like async/await, HttpClient, and generally a better infrastructure using lessons learned from the old code. PushSharp will now follow semver versioning, so major version numbers will go up as there are any breaking API changes. The API in v3.x+ series is quite different from 2.x. The goal is to simplify things and focus on the core functionality of the library, leaving things like constructing valid payloads up to the developer. For APNS you will also need to occasionally check with the feedback service to see if there are any expired device tokens you should no longer send notifications to.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 13
    Side Menu Android

    Side Menu Android

    Side menu with some categories to choose

    Side menu with some categories to choose. Depends on Ozodrukh's animation util for CircularReveal animation for 2.3+ version. First of all, you have to upload the animation submodule with git submodule update --init command. Or you can add gradle dependency with command. To add gradle dependency you need to open build.gradle (in your app folder, not in a project folder) then copy and add the dependencies there in the dependencies block. After you have to create special overlay layout to show in behind current Circular Reveal animated view. And to add all items to menu you have to add all of them into LinearLayout. All menu items should implement Resourceble interface to get menu item name and drawable res And all fragments should implement ScreenShotable to get a screenshot of a fragment. You can customize icons that you place in the menu, or add more items. Simply by changing the list you parse to view animator.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 14
    Weex Ui

    Weex Ui

    A rich interaction, lightweight, high performance UI library

    A UI toolkit for developing rich mobile applications with Weex, focusing on performance and flexibility.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 15
    WhatTodo

    WhatTodo

    A Simple Todo app design in Flutter to keep track of your task

    A Simple Todo app design in Flutter to keep track of your task on daily basis. Its built on BLoC Pattern. You can add a project, labels, and due date to your task also you can sort your task on the basis of project, label, and dates. This diagram showcase the dependencies to create a feature-specific BLoCs.The HomeBloc is independent and used as a communication channel between its child widgets. The app already has a preloaded Inbox project. You can add more projects by clicking add project button on SideDrawer. From the material color list you can specify any single color to the project.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 16
    cube-ui

    cube-ui

    Mobile UI library implement by Vue

    cube-ui is an elegant mobile component library based on Vue.js. From DiDi interior component library and has been put to business test for more than one year. Every component has full unit tests to provide assurance for continuous integration. Make quick response, fluent animation and close to native components as the goal, and pursue the perfection of the interactive experience. Follow a uniform design interaction standard and highly restore the design; Standardize the interface and unify the way of use, making development more simple and efficient. Lightweight and flexible, support post-compile and importing on demand; High scalability, it is easy to implement secondary development based on existing components. By API invoking, the popup layer is attached to body element whose advantage is that it wouldn't be affected by outer styles. If using component invoking, it's fairly easy to be affected by outer styles like transform, overflow, etc.
    Downloads: 0 This Week
    Last Update:
    See Project
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