Keepa - Amazon Price Tracker is a Chrome extension that provides price history charts and alerts for drops in prices on all Amazon websites. With comprehensive price history charts for over 3 billion Amazon products, users can easily spot trends and find the best deals. The extension also offers smart price drop and availability alerts, allowing users to set up alerts when the price of a product drops below a desired threshold. Additionally, Keepa supports international Amazon price comparison and tracking, and provides a curated selection of daily deals featuring products with the highest price drops. The extension is customizable to provide a personalized shopping experience and offers support for various Amazon locales and languages. No account is required to use the extension.