Free Picture Viewer

Free Picture Viewer is a simple application you can use to open graphic files and view containing images.
It comes packed with a slideshow creator and an embedded file browser similar to Windows Explorer, which gives you the possibility to seamlessly find and open files using familiar tools.

View images and slideshows

There are no software requirements involved for this app. Following a brief setup operation with simple steps to follow, you're greeted by a large window with a simple look. It might be confusing to figure out how to get started, though.

Toggle Explorer and single image mode

From the "View SlideShow" menu, you can click the two buttons next to "Views" to choose between Explorer and single image viewing mode. Unfortunately, the picture viewer isn't explicit concerning the supported file types. In our tests, we've noticed that it's compatible with PNG, BMP and JPG files.

Cannot view images in fullscreen

In Explorer mode, you can view the thumbnails of all photos from a selected directory. There's no option available for switching to fullscreen mode, which is a major downside for such software. Instead, you can can just zoom in and out.
By clicking "View SlideShow", you can put together a presentation on the spot using the images from the current directory. Before starting the slideshow, you can set the slide and transition time, along with the transition type. The slideshow cannot be saved or exported to file.

Unpolished interface for a basic image opener

This is where Free Picture Viewer's functionality ends. Sadly, the interface is unpolished, seeing as how the black background makes the tool look like a work in progress.
Also, the "View SlideShow" entry is not clearly delimited so you can tell that it's actually a button you can click. We failed in our attempts to get it to run on Windows 10 in our tests, even in compatibility mode for older Windows.