The WordPress Site Editor, often referred to as simply "Site Editor," is a powerful tool within the WordPress platform that allows users to visually create and customize the layout and design of their website. This feature provides a user-friendly interface where you can drag and drop elements, change styling, adjust layouts, and more, all in real-time without the need to write any code. The WordPress Site Editor is an excellent tool for users who prefer a more visual approach to building and designing their websites.