Instant ThumbView is a tiny image viewer that displays image thumbnails in a tooltip window when mouse pointer is hovered over an image file in Windows Explorer. It supports a lot of popular image file formats, including BMP, GIF, JPEG, PNG, EMF, TIFF and is very handy for quick image viewing. To bring it up, open any folder with image files in Windows Explorer, and then hover an image file with your mouse pointer.
Context ThumbView is a Windows Explorer context menu extension that provides image preview directly in the right-click menu. It supports most of popular image file formats, including BMP, GIF, JPEG, PNG, TIFF and is very handy for quick image viewing. Context ThumbView is brought up by right-clicking on an image file in Windows Explorer. It allows to save thumbnails, send them by email or copy to the Clipboard.