Eclipse is an Integrated Development Environment (IDE) that is highly customizable and supports a wide range of programming languages through the use of plugins. Originally designed for Java development, Eclipse has expanded to support languages such as C++, Python, PHP, and many others. The IDE is open-source and allows developers to tailor its functionality according to their specific needs. Eclipse’s plugin architecture enables it to be used in diverse software development projects, from desktop to web and enterprise applications. It also offers advanced debugging tools, project management features, and integration with popular version control systems like Git.