SageThumbs!

Extension module for Windows Explorer to render SVG thumbnails, so that you can have an overview of your SVG files.

Icaros is a collection of lightweight, high quality, Windows Shell Extensions, which is capable of providing Windows Explorer thumbnails for essentially any video media filetype. Icaros can provide Windows Explorer thumbnails, for essentially any video media format supported by FFmpeg which includes popular filetypes such as: Mkv, Flv, Avi, Mp4, Mov, Rmvb, M2ts, Ogm etc. It is capable of thumbnailing just about any file by adding its extension(s) to the optional filetypes box and re-activating Icaros. »

XnShell is a free File Explorer extension that installs a number of image-related tools in the right-click context menu, including a thumbnail preview, image conversion to a wide variety of formats, image resizing, editing image IPTC metadata, uploading to ImageShack, and other functions.

MysticThumbs generates thumbnails of many image types not natively supported by Windows. It does this transparently and in the background for Explorer so you don't have to run a separate application to preview your images. It is a native Windows Explorer plugin which means you don't have to do anything other than install it. This means you don't have any new interfaces to learn, think about or otherwise deal with. It also comes with QuickView - like a make click to see a preview of your image and its data. »

Pictus is a fast, free image viewer that enables Windows to see thumbnails of supported formats, such as PSD. Give it a spin today!

PicaView is the simple, no-hassle image viewing solution. This is an add-on for viewing images in File Explorer that lets you right-click on an image file to bring up a miniature image and image file information.It also offers full-screen viewing, image printing and converting. It supports 17 popular image formats, rotates JPEG images with no image degradation, sets desktop wallpaper to any image and performs batch format conversions.It also acts as a preview media player. Right-click a supported format and you can preview music before opening it with a standard media player. This is an excellent addition in the newest version. »

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, WMF, EMF, TIFF and is very handy for quick image viewing

Context Viewer is an explorer extension in the form of a Control Panel applet that lets you preview image files and text in the right click menu. It can also display customized information about images and set hotkeys to enable or disable the preview along with a few more options.

FirmTools ShellExtension is a real handy freebie for Windows users.

FastPreview was created in need of a usable PicaView replacement which was discontinued at the time.

Resize, add watermarks and share your pictures with a single click.

AhaView is a handy picture viewer and converter. It allows you to browse, view, organize and convert your digital images.

This shell extensions will show you a thumbnail of an image file, as well as its dimensions, when you right click on a filename inside Explorer.