Fyne

Fyne is an open-source, cross-platform GUI toolkit for the Go programming language. It provides a native-looking set of widgets and layout containers that allow developers to build desktop and mobile applications from a single codebase. Fyne targets Windows, macOS, and Linux on the desktop, as well as iOS and Android on mobile devices.

Developed by the Fyne project and a community of contributors, the project is hosted publicly on GitHub under an open-source license and is designed to be easy to learn for Go developers. The toolkit emphasizes a consistent API across platforms and a modern visual style, with built-in theming and support for high-DPI displays.

The toolkit uses a canvas-based rendering model with vector-based widgets and a simple event-driven model. It provides a broad widget set, including buttons, labels, text entries, check boxes, radio buttons, sliders, lists, trees, tabs, and canvases, along with layout containers for horizontal, vertical, grid, center, and stacked arrangements to organize UI elements. The theming system allows light and dark themes and customization of colors and typography.

Usage: Developers write Go code using the fyne.io/fyne package and related subpackages to create windows, widgets, and layouts. The project also provides tooling and examples to help with building, testing, and packaging applications for different platforms. An included Fyne Demo app showcases typical widgets and interactions.

License: MIT.