Outliner is a simple and free Chrome extension developed by Lotuz. It falls under the category of Browsers and is specifically categorized as an Add-ons & Tools extension.

The main purpose of Outliner is to help users visualize the box model outlines of page elements. This can be particularly useful for web developers and designers who need to inspect the layout and structure of a webpage. By adding this extension to your Chrome browser, you can easily toggle on and off the box model outlines, making it easier to analyze and understand the positioning and sizing of various elements on a webpage.

Outliner provides a straightforward and accessible way to view box model outlines without the need for complex developer tools or manual CSS modifications. It is a handy tool for anyone involved in web development or design, allowing for quick and efficient analysis of webpage layouts.