PhotoHandler is described as 'PhotoImp is simple and stylish photo and RAW files viewer and manager with ability to import photos from camera, resize, convert. Just connect your camera and get you photos downloaded' and is a Image Viewer in the Photos & Graphics category. There are seven alternatives to PhotoHandler for a variety of platforms, including Windows, Mac, PortableApps.com, Linux and Windows S. Most alternatives are Image Viewers and Image Editors. The best alternative is IrfanView. It's not free, so if you're looking for a free alternative, you could try JPEGView or Microsoft Photos. Other great apps like PhotoHandler are XnView MP (Free Personal), NX Studio (Free), 7GIF (Free) and Image Detail (Free Personal).
You can use the Photos app to view or edit photos and videos in your Pictures library and on OneDrive, and to import photos and videos. The Photos app includes a wide range of editing options to enhance your photos, from automatic fixes to advanced adjustments.
With 7GIF you have full control over the animation: play, pause, repeat, frame-by-frame view, zoom, speed up/down; and a LOT of features like: frames export, fast GIFs switching, slideshow, full screen mode, Windows 7 (8 and 10) advanced taskbar features, multilanguage UI...
A new image viewer that has nice features like identifying and generating colors from image, changing colors of image with color adjustment and color matrix tools, crop & split image for Instagram, TIF/GIF Animated extractor, batch functions.