Free Tools
Best Free Tools for Amazon Sellers
Easily check Amazon IP alerts, convert ASIN to UPC or EAN, and find ASIN from UPC or EAN code.
Free Amazon ASIN Lookup
Look up any product on Amazon by ASIN, UPC, or EAN. Get title, brand, BSR, pricing, and identifiers instantly.
ASIN to UPC Converter
Convert any Amazon ASIN to its UPC, EAN, or GTIN in seconds. Single lookups are free.
UPC to ASIN Converter
Enter a UPC or barcode and instantly find the matching Amazon ASIN and product details.
EAN to ASIN Converter
Paste an EAN and get the corresponding Amazon ASIN, UPC, and GTIN back instantly.
Free IP-Alert Lookup
Check any Amazon ASIN for IP complaints, brand restrictions, and account risk flags before you source it.
Free Amazon FBA Calculator
Enter an ASIN and your cost to see referral, FBA and storage fees, profit, ROI and break-even price, with 2026 peak fees.
Free Amazon Sales Estimator
See the estimated monthly sales of any ASIN, or of any Best Sellers Rank and category on 10 marketplaces.
Free Amazon Seller Lookup
Paste a seller ID or storefront URL and see the seller's feedback, listing count, FBA use, top brands and categories.
Supplier Finder by Brand
Enter a brand name and get a list of verified manufacturers, distributors, and wholesalers.
Quick Overview of Price List Analyzer
See how to analyze supplier price lists, match UPCs to ASINs, and calculate profit in bulk — all in one workflow.
How-tos and guides
FBM and FBA Calculator by Seller Assistant
FBM & FBA Calculator by Seller Assistant simplifies profitability, fees, taxes, and logistics calculations. Make data-driven decisions directly on Amazon and supplier pages
Sales Estimator by Seller Assistant
Amazon Sales Estimator by Seller Assistant forecasts potential product sales, estimates how many units you can sell, and calculates potential revenues. Read this post to know how.
Amazon Fees by Category in 2026: Did the Fee Increases Take More of the Sale Price?
Amazon raised fees twice in 2026. On the same products, Amazon's cut of the sale price stayed about 40%, from 26.7% to 46.6% by category, and only media went up. Data from 782 wholesale sellers.
How to Estimate Amazon Product Sales in Bulk
Estimate Amazon product sales in bulk with Price List Analyzer. Analyze demand, sales volume, and revenue fast from supplier price lists.
Free Amazon Seller Tools
Free Amazon seller tools help you research ASINs, convert UPCs and EANs, check IP risks, and find suppliers to source smarter on Amazon from day one.
Upgrade to the Full Amazon Seller Workflow
Free tools are just the beginning. Unlock bulk analysis, product research, and supplier management with Seller Assistant — the all-in-one workflow for Amazon wholesale and online arbitrage.
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Not sure which plan fits your sourcing workflow? Chat with our team — we're happy to help.