Introduction
The Rust programming language, known for its performance and safety, continues to gain popularity in software development. By 2026, Rust GUI libraries have seen impressive growth. This article offers a detailed survey of these libraries, examining their features through a concrete use case: a QR code generator.
Why a QR Code Generator?
Choosing a QR code generator is intentional. It involves essential elements for any GUI application: text fields, IME (Input Method Editor) management, and image rendering. Furthermore, it allows for evaluating interoperability with the existing Rust ecosystem.
Library Analysis
Azul
Azul stands out with its ambitious approach with Azlin Workspace and Azlin UI Toolkit. In 2026, version 0.2.0 was released. However, developers often encounter issues with generated libraries not recognized by certain tools like rust-analyzer. Despite this, Azul offers good macOS compatibility and accessible documentation on GitHub.
Egui
Egui is praised for its simplicity and speed. By 2026, it is widely used for applications requiring a responsive user interface. Its strength lies in its ability to efficiently manage UI drawing with smooth integration with the Rust backend.
Iced
Iced continues to assert itself as a robust alternative for interface development in Rust. In 2026, Iced improved its cross-platform support, making application development on Windows, macOS, and Linux more seamless. It stands out for its functional approach and efficient state management.
GTK 4
GTK 4 offers a wide range of features and proven stability. In 2026, it remains one of the most comprehensive options for cross-platform GUI applications. Developers particularly appreciate its rich set of widgets and exhaustive documentation.
Yew
While Yew is primarily used for web development, it is included in this survey for its ability to create modern user interfaces. By 2026, Yew offers excellent integration with WebAssembly, allowing Rust developers to effectively target the web.
Conclusion
In 2026, choosing a Rust GUI library strongly depends on specific application needs and personal preferences. Azul, Egui, Iced, GTK 4, and Yew each represent a unique approach with their advantages and disadvantages. Whatever your choice, Rust continues to provide a solid foundation for developing high-performance user interfaces.
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