CompressIt can help you to select the most effective format for your images. This utility will allow you to free a disk space of your computer by reducing a file size of stored images even if the images have been already compressed. CompressIt has an intuitive easy-to-use interface. All you need to do is just open an image you want to be compressed, compare file sizes of created JPG, GIF, PNG, TIF images and then save the most optimal result.