RAD Studio is an integrated development environment (IDE) created by Embarcadero Technologies for building applications across multiple platforms, including Windows, macOS, iOS, and Android. It combines the power of the Object Pascal programming language with a visual design interface, allowing developers to create user-friendly applications quickly. The IDE includes tools like the FireMonkey framework for building rich graphical applications and the VCL (Visual Component Library) for Windows applications. With features such as code completion, debugging, and database connectivity, RAD Studio streamlines the development process, making it accessible for both beginners and experienced developers.