GRUGRU Image Fullscreen Version is a full-screen viewer available on the Chrome platform. This viewer allows users to rotate, flip, zoom, and position images. Whether images are on a website or local files, they can be easily manipulated and displayed in full screen within the same tab. To access the viewer, simply right-click on an image on a website and select "GRUGRU Image View". The viewer will appear on top of the current page, and can be opened and closed using the browser icon. Users can also view the last viewed image again. If the viewer is opened on a page other than a website, such as the browser options page or a new tab, it will open in a new tab. The viewer provides various features such as a canvas for image display, full-screen mode, auto fit, rotate, flip, and more. It also includes a message display section to show the URL or file name of the currently displayed image. GRUGRU Image Fullscreen Version is a free add-on and tool under the Browsers category.