DivKit is an open source Server-Driven UI (SDUI) framework
Powerful iOS UI framework implemented by Objective-C.
A growing collection of beautifully designed UI components for Go
Java UI Framework for Desktop/iOS/Android
Web and Mobile framework
A simple and elegant Android native UI framework
A Utility-First React Native UI Framework
TangramKit is a powerful iOS UI framework implemented by Swift
UI form validation library for Android
Embedded Rapid Application Development