ImgViewON is a free and open source image viewer for Linux, MacOS and Windows. Using this image viewer you can view your images without any border, editing options and completely distraction free. It is released under MIT license. It comes with invisible resize bars at bottom, right, bottom-right of the displayed image. Using this you can change image window size. It supports .bmp,.gif,.jfi,.jfif,.jif,.jpe,.jpeg,.jpg,.png,.svg,.svgz,.tiff and .webp file formats.