This useful tool is different from the rest of similar programs because it uses a different algorithm which allows it to locate two images which are the same though they are formatted with different extensions. Image Comparer identifies images with different size or resolution.
If you have different but very similar photos or images, it will also tell you about them. You can choose the accuracy ratio (95-100%)
Choose the folders where it should search for them and wait for it, it will tell you if you have duplicate images or not in a matter of seconds (depending on the number of images in the folder)
Image converter supports: JPEG, J2K, BMP, GIF, PCX, PNG, TIFF, TGA, ICO, CUR.