WaterUI icon
WaterUI icon

WaterUI

A modern, cross-platform UI framework for Rust that renders to native platform widgets (UIKit/AppKit on Apple, Android View on Android) rather than drawing its own pixels. Build reactive, declarative UIs with Rust's type safety and performance.

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Platforms

  • Self-Hosted
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Features

  1.  No registration required
  2.  Cross-Platform
  3. Android icon  Android Development
  4.  Native application

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GitHub repository

  •  434 Stars
  •  13 Forks
  •  65 Open Issues
  •   Updated  
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What is WaterUI?

WaterUI combines declarative, component-based architecture with fine-grained reactivity to deliver truly native user interfaces across platforms. Unlike traditional Rust UI frameworks that implement custom rendering, WaterUI translates your Rust view tree into platform-native UI components through an FFI bridge, ensuring your apps look and feel native on every platform.

The framework is built on three core principles:

  • Native-first rendering: Your UI components compile to UIKit/AppKit views on iOS/macOS and Android View on Android, delivering authentic native behavior and performance.
  • Fine-grained reactivity: Powered by the nami crate, UI updates are surgical and automatic—only affected components re-render when state changes.
  • Hot reload: Changes to your Rust code reload instantly in running apps via dynamic library swapping, providing a development experience similar to web frameworks.

WaterUI is ideal for building production mobile apps, cross-platform tools, and native desktop applications where performance and platform integration matter.