DOM Outliner is a free Chrome extension developed by noeclement. It falls under the category of Browsers and is classified as an Add-ons & Tools subcategory. This extension acts as an X-ray for your webpage, allowing you to visually outline and distinguish different elements within the webpage's Document Object Model (DOM).

With DOM Outliner, you can easily identify and analyze the structure of a webpage, making it simpler to debug and optimize your web projects. By activating the extension, you will see the DOM elements highlighted with different colors, enabling you to quickly and easily identify and differentiate between them.

This extension is a valuable tool for web developers and designers who need to understand the structure and hierarchy of elements within a webpage. It provides a visual representation of the DOM, making it easier to locate and fix issues. DOM Outliner is an essential addition to any developer's toolkit.