FireMonkey

FireMonkey, commonly abbreviated FMX, is a cross-platform graphical user interface framework developed by Embarcadero Technologies as part of the RAD Studio product family. It enables developers to create native-looking Windows, macOS, iOS, and Android applications from a single codebase using Delphi or C++Builder. It was introduced with Delphi XE2 in 2011 to provide a unified UI framework for multiple platforms, built around a hardware-accelerated rendering engine and a scene graph that renders UI elements with scalable visuals.

The framework provides a large set of platform-agnostic controls (for example TButton, TLabel, TEdit, TListView, TGridPanelLayout, TRectangle, and TPath) plus a styling system with StyleBook that defines appearance separately from logic. Rendering is vector-based and hardware-accelerated, and the UI is composed in a scene graph that supports 2D and basic 3D elements, animations, and effects.

Applications share most of their code, with platform-specific behavior achievable through conditional compilation and platform services. FireUI supports responsive layouts for mobile form factors, and controls are styled to adapt to different screen sizes and densities.

FireMonkey is integrated into the RAD Studio IDE and benefits from features such as style editing, live preview, and data binding, making it a central framework for cross-platform desktop and mobile development in Delphi and C++Builder.