HTML Layout X-Ray is a free Chrome add-on developed by Arjun. As a tool for web developers, it allows users to easily check how HTML layouts are rendered and debug any space border issues. With this add-on, developers can inspect the structure of their web pages, including frames, borders, sections, and tables.

One of the main features of HTML Layout X-Ray is its ability to display the HTML page layout in a visual manner. This makes it easy for developers to identify any layout issues and understand how elements are positioned on the page. By visually inspecting the layout, developers can quickly locate and fix any problems related to spacing or borders.

Overall, HTML Layout X-Ray is a valuable tool for web developers who need to debug HTML page layouts. Its intuitive interface and visual representation of the layout make it easy to identify and resolve any layout issues. Whether you're working on a simple webpage or a complex web application, this add-on can help you ensure that your HTML layout is rendered correctly.