Barcode Lookup is an online service designed to provide detailed information about products based on their barcodes. By entering a barcode number or scanning a product's barcode with a mobile device, users can access comprehensive product details including the name, manufacturer, category, and images. The platform is useful for consumers looking to verify product authenticity, compare prices, or gather additional information on a purchase. Businesses and developers can also integrate Barcode Lookup's API into their systems to enhance their product data management.