This service does one thing: when you found a product on Amazon and want to see the other options, you paste the listing link and it opens a small window with similar items beside it. The page shows the item you picked together with a handful of similar alternatives, each with a photo and the price the store reported at the time of the query, so you can compare before going back to the shop. You paste the long product URL or a shortened link, and what actually identifies the listing is the ten-letter product code, which the service keeps next to the store in the address so the same comparison can be copied and opened again later. Each alternative links back to the corresponding listing with its own photo. If the text you paste is not a product link, the site says so plainly instead of guessing. There is no account, no installation and no extension to install.