FXML Viewer Online

This tool accepts FXML code, parses it into an internal model, and renders a static preview of the UI defined by the markup. It is designed for Java developers, UI engineers, and testing teams who review layouts outside of a full IDE. It supports standard JavaFX controls, containers, and common properties while omitting runtime bindings or code execution.
Conceptually, the tool validates XML well-formedness, resolves FXML namespaces, builds a hierarchical scene graph, and renders a snapshot of the requested layout. It reports syntax errors with line and column information and highlights structural mismatches such as missing attributes or misused containers.
Users benefit from immediate visual feedback during design reviews, from education contexts to documentation pipelines, and from CI workflows that need deterministic previews of UI fragments. The tool's output can be used for comparison, regression checks, or as an artifact in design handoffs.
Core features include real-time rendering, XML validation, namespace handling, and export options for the rendered image or a simplified scene description. Optional capabilities cover light data binding simulation and guidance on best-match controls to illustrate intended layouts.
The tool assumes UTF-8 input, standard JavaFX semantics, and no external resource loading. It excludes runtime behavior, animation, and custom skin rendering unless provided as static attributes.