OpenFL

It is a C++ framework for low-latency applications, with cross-platform GUI libraries to get your apps running on Mac OS X, Windows, Linux, iOS and Android.

React Native enables you to build world-class application experiences on native platforms using a consistent developer experience based on JavaScript and React. The focus of React Native is on developer efficiency across all the platforms you care about - learn once, write anywhere. Facebook uses React Native in multiple production apps and will continue investing in React Native.

Flutter is a mobile app SDK to help developers and designers build modern mobile apps for iOS and Android.

With Electron, creating a desktop application for your company or idea is easy. Initially developed for GitHub's Atom editor, Electron has since been used to create applications by companies like Microsoft, Facebook, Slack, and Docker. The Electron framework lets you write cross-platform desktop applications using JavaScript, HTML and CSS. It is based on io.js and Chromium and is used in the Atom editor.

Free and open source, Ionic offers a library of mobile and desktop-optimized HTML, CSS and JS components for building highly interactive apps. Use with Angular, React, Vue, or plain JavaScript.

Xamarin’s Mono-based products enable .NET developers to use their existing code, libraries and tools (including Visual Studio*), as well as skills in .NET and the C# programming language, to create mobile applications for the industry’s most widely-used mobile devices, including Android-based smartphones and tablets, iPhone, iPad and iPod Touch.

It is a framework and a platform for universal React applications. It is a set of tools and services built around React Native and native platforms that help you develop, build, deploy, and quickly iterate on iOS, Android, and web apps.

Apache Cordova is a set of device APIs that allow a mobile app developer to access native device function such as the camera or accelerometer from JavaScript. Combined with a UI framework such as jQuery Mobile or Dojo Mobile or Sencha Touch, this allows a smartphone app to be developed with just HTML, CSS, and JavaScript.

PhoneGap is a web platform that exposes native mobile device apis and data to JavaScript. PhoneGap is a distribution of Apache Cordova. PhoneGap allows you to use standard web technologies such as HTML5, CSS3, and JavaScript for cross-platform development, avoiding each mobile platforms' native development language. Applications execute within wrappers targeted to each platform, and rely on standards-compliant API bindings to access each device's sensors, data, and network status.

NativeScript enables developers to build native apps for iOS, Android and Windows Universal while sharing the application code across the platforms. When building the application UI, developers use our libraries, which abstract the differences between the native platforms.

Qt, a leading cross-platform application and UI framework. With Qt, you can develop applications once and deploy to leading desktop, embedded & mobile targets.

A mobile application framework for building user interfaces.It easily create native user interface layouts that can be shared across Android, iOS, and Windows Phone.

Invoke Native SDKs on iOS, Android, Electron, and the Web with one code base. Optimized for Ionic Framework apps, or use with any web app framework.`

It is a set of graphics and media packages that enables developers to design, create, test, debug, and deploy rich client applications that operate consistently across diverse platforms.

Web Starter Kit is a starting point for multi-screen web development. It encompasses opinionated recommendations on boilerplate and tooling for building an experience that works great across multiple devices. We help you stay productive and aligned with the best practices outlined in Google's Web Fundamentals.

It is a free and open source mobile HTML framework to develop hybrid mobile apps or web apps with iOS native look and feel. All you need to make it work is a simple HTML layout and attached framework's CSS and JS files.

It is a cross-platform set of Python modules designed for writing video games. It includes computer graphics and sound libraries designed to be used with the Python programming language.

Automate the lifecycle of your iOS, Android, Windows, and macOS apps. Connect your repo and within minutes build in the cloud, test on thousands of real devices, distribute to beta testers and app stores, and monitor real-world usage with crash and analytics data. All in one place.

Matcha is a package for building iOS and Android applications and frameworks in Go. Matcha provides a UI component library similar to ReactNative and exposes bindings to Objective-C and Java code through reflection. The library also provides Go APIs for common app tasks.

Vue Native is a mobile framework to build truly native mobile app using Vue.js. Its is designed to connect React Native and Vue.js. Vue Native is a wrapper around React Native APIs, which allows you to use Vue.js and compose rich mobile User Interface.

Create React Native App allows you to work with all of the Components and APIs in React Native, as well as most of the JavaScript APIs that the Expo App provides.

It is a framework for building tiny, blazing fast binaries for all major desktop platforms. Developers can integrate any front-end framework that compiles to HTML, JS and CSS for building their user interface. The backend of the application is a rust-sourced binary with an API that the front-end can interact with.

It is a full development framework with tools designed to streamline the creation of applications and user interfaces for desktop, embedded, and mobile platforms.

Element is a Vue 2.0 based component library for developers, designers and product managers, with a set of design resources.

NativeBase is a free and open source framework that enables developers to build high-quality mobile apps using React Native iOS and Android apps with a fusion of ES6. NativeBase builds a layer on top of React Native that provides you with basic set of components for mobile application development. This helps you to build world-class application experiences on native platforms.

It is a low-code builder for native mobile applications. You can use a simple drag and drop interface to build your app 10x faster than traditional development.

Sencha Touch 2, a high-performance HTML5 mobile application framework, is the cornerstone of the Sencha HTML5 platform. Built for enabling world-class user experiences, Sencha Touch 2 is the only framework that enables developers to build fast and impressive apps that work on iOS, Android, BlackBerry, Kindle Fire, and more.

It is a native React version of Ionic Framework that makes it easy to build apps for iOS, Android, Desktop, and the web as a Progressive Web App. All with one code base, standard React development patterns, and using the standard react-dom library and huge ecosystem around the web platform.

It is a set of Python v2 and v3 bindings for Qt application framework and runs on all platforms supported by Qt including Windows, OS X, Linux, iOS and Android. PyQt5 supports Qt v5. PyQt4 supports Qt v4 and will build against Qt v5. The bindings are implemented as a set of Python modules and contain over 1,000 classes.

It is a NativeScript plugin which allows you to use Vue.js to craft your mobile application. It aims to have a syntax that you are used to from Vue.js.

Onsen UI helps you develop both hybrid and web apps. If developing hybrid apps, you can use it with the Cordova / PhoneGap command line, or with Monaca tools (CLI, Monaca IDE - cloud-based IDE for Cordova, Localkit - desktop GUI).

It is a cross-platform development library designed to provide low level access to audio, keyboard, mouse, joystick, and graphics hardware via OpenGL and Direct3D.

RIBs is the cross-platform architecture framework behind many mobile apps at Uber. The name RIBs is short for Router, Interactor and Builder, which are core components of this architecture. This framework is designed for mobile apps with a large number of engineers and nested states.

It is a Platform to create innovative custom apps for your workplace.

The fastest way to build beautiful Electron apps using simple HTML and CSS. Underneath it all is Electron. Originally built for GitHub's Atom text editor, Electron is the easiest way to build cross-platform desktop applications.

Nativefier is a command line tool that allows you to easily create a desktop application for any web site with succinct and minimal configuration. Apps are wrapped by Electron in an OS executable (.app, .exe, etc.) for use on Windows, OSX and Linux.

RubyMotion lets you quickly develop cross-platform native apps for iOS, Android and OS X, all using your favorite editor and the awesome Ruby language you know and love.

The unity of the server-side. GameSparks is a cloud-based development platform for games developers enabling them to build all of their game's server-side

Create native desktop applications through a React syntax, on all platforms.

It is a C++ library that lets developers create applications for Windows, macOS, Linux and other platforms with a single code base. It has popular language bindings for Python, Perl, Ruby and many other languages, and unlike other cross-platform toolkits, it gives applications a truly native look and feel because it uses the platform's native API rather than emulating the GUI. It's also extensive, free, open-source and mature.

Electron.NET is a wrapper around a "normal" Electron application with a embedded ASP.NET Core application. Via our Electron.NET IPC bridge we can invoke Electron APIs from .NET. The CLI extensions hosts our toolset to build and start Electron.NET applications.

This project lets you deploy an update server for Electron apps with ease: You only need to run a single command and fill out two text fields.

Apportable lets you cross-compile your iOS app and re-use the same code across platforms.

Crosswalk is a web runtime for ambitious HTML5 applications. All the features of a modern browser, deep device integration and an API for adding native extensions

Build OS X desktop apps using React Native.

It is an open source library for building cross-platform native desktop applications with JavaScript and CSS like styling. It is based on Qt5 and NOT chromium, hence it is memory and cpu efficient.

ReactNativeSeed.com provides you with a number of React Native Boilerplates to choose from. You can opt for MobX or Redux for state-management, TypeScript or Flow for static type checking and CRNA or plain React Native for the stack.

react-desktop is a JavaScript library built ontop of Facebook's React library, which aims to bring a native desktop experience to the web, featuring many OS X El Capitan and Windows 10 components. react-desktop works perfectly with node-webkit and Electron.js, but can be used in any JavaScript powered project!

It is a software development kit for the development and deployment of cross-platform rich Internet applications based on the Adobe Flash platform.

Shoutem UI is a set of styleable components that enables you to build beautiful React Native applications for iOS and Android. All of our components are built to be both composable and customizable.