image import from external url

need application. I have thousand of urls for the images i am using from the other website on mine. Now i want all of them to have on my local machine so that i can embeded them with my website datase to remove external links. I want to save the image available on a particular url with the same image name. need application whereby i can pass the url & can automatically collect the image available on the other end. excel file import will do.