
The app comes with different view options, along with the option to view image properties and run slideshows, with different customizing options. What’s more, ImageGlass offers quick thumbnail preview, slideshow, image conversion into 10 different formats, and gives you the option to change different app settings as per your liking. For instance, you get auto-zoom, scale to fit, scale to fill, etc as some of the zoom modes, and window fit, frameless, fullscreen, and slideshow, as different window modes.

It claims to support over 70 different image formats (including GIF) and provides various zoom and window modes. The app offers a clean and lightweight interface that loads instantly and is fairly easy-to-use. Being open-source means that, in addition to using the app as it is, you also get to enjoy the benefits of being able to modify it as per your requirements.

ImageGlass is one of the open-source image viewer apps for Windows.
