XAML.io

XAML.io is a browser-based development environment specifically designed for creating and editing XAML user interfaces. It provides a familiar IDE-like experience with a visual designer, code editor, and solution explorer all accessible through a web browser. Developers can drag and drop UI components like buttons, text blocks, and layout panels, with the XAML code updating in real-time. The split-view interface allows simultaneous viewing of the visual design and the underlying XAML markup, making it easy to understand how changes affect the final interface.

The tool includes an AI component that suggests relevant controls and layouts based on the current design context, helping developers discover appropriate UI elements faster. The integrated debug functionality and one-click run button let users test their interfaces immediately without leaving the browser. XAML.io is built on OpenSilver technology, which enables WPF-style development to work cross-platform while maintaining the familiar XAML workflow that .NET developers expect.

This tool is particularly useful for developers who need to quickly prototype interfaces or learn XAML without installing heavy desktop software. It serves as both a practical development tool for experienced .NET developers and an educational platform for those new to XAML-based UI development. The web-based nature makes it accessible from any device, allowing teams to collaborate on interface designs or quickly share prototypes with stakeholders.