Element Outliner is a Chrome extension that adds outlines to elements on webpages, assisting web developers, designers, and accessibility testers. By toggling outlines on specific elements using CSS selectors or the hotkey Ctrl + Q, users can visualize webpage structure, identify layout issues, and customize outline properties like color, style, width, and offset. Developed as a personal project, Element Outliner aims to streamline the process of element visualization during web development.

This tool offers a user-friendly interface accessible via the extension icon, allowing users to quickly toggle outlines, set properties, and target specific elements. Troubleshooting tips are provided for users facing issues, and privacy measures ensure that no site information is accessed or modified. Although limited to external webpages in the Chrome browser, Element Outliner promises to enhance the web development experience.