Browse free open source Frameworks and projects for Mobile Operating Systems below. Use the toggles on the left to filter open source Frameworks by OS, license, language, programming language, and project status.
Innovative user interfaces made easy
Build mobile apps with React
An open-source platform for making universal native apps with React
A cross-platform UI framework for .NET
Build amazing Native and Progressive Web Apps with web technologies
UI Automation Framework for Games and Apps
DivKit is an open source Server-Driven UI (SDUI) framework
Classic modular front-end UI framework
LNPopupController is a framework for presenting view controllers
WordPress.com for Desktop
Bridges the worlds of .NET with the native APIs of macOS, iOS, tvOS
Realtime application framework (Node.JS server)
Modern declarative data visualization chart framework
A powerful cross-platform UI toolkit for building native-quality apps
A dependable HTML media framework
A bytecode optimizer for Android apps
Create hand-drawn, sketchy, comic shape in Swift
High-performance framework closest to native APP experience
Cross platform toolkit for creative coding in C++
Modern C++20 framework to create console, GUI and unit tests.
ALFOUR Programming language. Simple, safe, power, multi-platform.
Support for legacy OpenGL in core profiles
Build Cross-platform Applications
An elegant modern declarative data visualization chart framework
A delightful networking framework for iOS, macOS, watchOS, and tvOS