RipeBanana — Amazon Inventory Intelligence

RipeBanana Chrome extension — client-side Amazon stock measurement + on-page inventory intelligence

RipeBanana turns any Amazon product page into a buying decision. Open a listing and a compact bar appears above the page with the numbers a reseller actually needs: the buy-box price, referral and FBA fees, estimated monthly sales, how many sellers are competing, and how much stock they are sitting on. Type in what the item costs you and RipeBanana returns your ROI, your profit per unit, and a plain verdict — RIPE, RIPENING or ROTTEN. WHAT YOU SEE ON EVERY LISTING • Buy-box price, fees and net profit against your own cost • ROI and days of cover — how long the current stock lasts at the current rate • Estimated monthly sales derived from sales-rank history • Every seller on the listing with their price, stock and fulfilment method • 30-day charts for competitor stock, buy-box price and sales rank • Warnings that cost money if missed: brand gating, hazmat, Amazon on the listing HOW STOCK IS MEASURED Competitor stock is not published by Amazon, so RipeBanana measures it the same way a buyer would: it adds the item to your cart, reads the quantity limit the page reports back, and removes it again immediately. Nothing is ever purchased and your cart is left as it was. This runs on product pages you open yourself. You can switch it off in the extension's options at any time. WHAT IT DOES NOT DO RipeBanana never browses in the background, never opens pages you did not open, and never touches your Seller Central account or your orders. It reads the page you are already looking at. ACCOUNT The verdict, the charts and the historical data come from a RipeBanana account. Without one the bar still shows what the page itself reveals — sellers, prices and measured stock — but no analysis. Sign up at https://ripebanana.io