Apache NetBeans is an open-source integrated development environment (IDE) primarily used for developing applications in Java. It supports various programming languages, including PHP, JavaScript, and HTML5. The IDE provides tools for code editing, debugging, and project management, making it easier for developers to create software efficiently. One of the key features of Apache NetBeans is its modular architecture, allowing users to customize the environment with plugins. It also offers built-in support for version control systems like Git and Subversion, enhancing collaboration among developers. Overall, it is a versatile tool for both beginners and experienced programmers.