SellerAmp SAS is a Chrome extension designed for Amazon sellers who engage in online arbitrage or wholesale sourcing. It provides a range of features to help sellers analyze products, including Keepa charts, an FBA profit calculator, stock levels, and more. The extension allows users to determine if they are eligible to sell a product, assess its sales potential, and calculate its profitability. SellerAmp SAS also offers tools for organizing and storing analysis data. The extension is available for use on multiple Amazon marketplaces and includes a mobile app and web app for use outside of the extension.