download list of images from urls

I need to find (preferably) or build an app for a lot of images. Each image has a distinct URL. There are many thousands, so doing it manually is a huge effort. The list is currently in an csv file. (It is essentially a list of products, each with identifying info (name, brand, barcode, etc) and a link to a product image. I'd like to loop through the list, and download each image file. Ideally I'd like to rename each one - something like barcode.jpg. I've looked at a number of image scrapers, but haven't found one that works quite this way. Very appreciative of any leads to the right tool, or ideas...