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

Bookmark Checker is a handy tool that allows you to easily determine whether a link you are hovering over is bookmarked or not. Once installed, you can simply hover over any link on a page, and if it is bookmarked, an icon will appear next to it. This feature saves you the time and effort of manually checking your bookmarks to see if a particular link is saved.

With Bookmark Checker, you can quickly identify which links you have already bookmarked and which ones you haven't. This can be particularly useful when you come across interesting articles or websites that you want to save for later reference. By effortlessly checking if a link is bookmarked, you can manage your bookmarks more efficiently and keep your browsing experience organized.

Overall, Bookmark Checker is a useful Chrome extension for anyone who wants to easily determine if a link is bookmarked or not. Its simple and intuitive interface makes it accessible to users of all levels of technical expertise.