So, you know how sometimes you want to write something on your computer, like a story or a letter, but you need a special program to do it? Well, Eclipse is a special program for people who want to write computer programs.
It's like a big toolbox with lots of different tools inside it. Each tool helps you do something different when you're writing your program. For example, one tool might help you organize your program so it's easier to read, and another might help you find errors in your code so you can fix them.
Eclipse is also really good because it can work with lots of different types of programming languages. That means you can use it to write programs in different ways, depending on what you need or what you already know.
Overall, Eclipse is a helpful tool for people who want to write computer programs, and it helps them do it in a way that's organized, efficient, and easy to understand.