Selector Sync is a free Chrome add-on developed by Yusuke Takeuchi. It falls under the category of Browsers and specifically the subcategory of Add-ons & Tools. This handy tool allows users to search the HTML of the currently open tab using a pre-registered set of CSS selectors and displays the results.

With Selector Sync, users can easily select DOM elements on web pages by specifying CSS selectors. The add-on provides a simple and intuitive interface for managing and modifying the CSS selectors in the settings screen. Whether you're a developer looking to inspect and manipulate specific elements on a webpage or a user trying to find specific content, Selector Sync simplifies the process by streamlining the selection process.