ImageGlass - You can use Image to view your digital images and photos of many different formats.
Scrambled Exif - Scrambled Exif (pronounced eggsif) helps you remove the metadata in your pictures before you share...
Fragment - A powerful image viewing suite with advanced metadata info
mat2 - mat2 is a metadata removal tool, supporting a wide range of commonly used file formats.
IrfanView - IrfanView ... one of the most popular viewers worldwide.
ImagePipe - removes exif data and modifies images to reduce size before sharing.