Free Amazon Tools

Yes. Every tool on this page is free to use with no signup and no credit card. The calculators run in your browser with no allowance at all. Tools that look up keyword or product data draw from a daily allowance that keeps them fast and fair for everyone, and signing in with a Keywords Everywhere API key raises it on paid plans; every plan has a cap.

Ten free Amazon tools right now: Amazon FBA Revenue Calculator, Amazon ACoS Calculator, KDP Royalty Calculator, KDP Cover Size Calculator, Amazon Image Resizer, Amazon Link Generator, Amazon ASIN Lookup, Amazon Product Research Tool, Amazon Price Checker, and Amazon Keyword Tool. New Amazon tools appear on this page as they launch, and the Free eCommerce Tools page lists them next to the eBay, Etsy, and general seller tools.

No. Nothing here connects to Amazon, asks for your Seller Central login, or reads your account. The calculators work from the numbers you type; where a tool looks up public product or keyword data it does so through a licensed data provider, not through your account.

It ships with Amazon's published 2026 rates: a referral fee of 15% in most categories with a $0.30 minimum, and a fulfillment fee you enter for your product's size tier (the default is a small-standard baseline; Amazon's own fee table has the exact figure for your dimensions and weight). Every rate is an editable input, because Amazon varies referral fees by category and price band, adds seasonal storage and peak-period surcharges, and changes the fulfillment table every January. Type the figures from your Seller Central fee preview and the calculator does the rest: fees per unit, profit, margin, and ROI. The Amazon FBA Revenue Calculator FAQ lists the verified-as-of date.

The referral fee is Amazon's commission on the sale: a percentage of the item price (15% in most categories, lower for some electronics and higher for a few others) with a $0.30 minimum, and every seller pays it whether they use FBA or ship themselves. The fulfillment fee is what FBA charges to pick, pack, and ship one unit, and it depends on the size tier and weight, not the price. Add monthly storage on top for stock that sits in a warehouse. The calculator shows all three so you can see which one is eating the margin.

Yes. The Amazon Keyword Tool takes a seed keyword and returns the related searches Amazon shoppers type, up to 100 per lookup, each with Google search volume, CPC, competition, and 12-month trend. The volume is Google's, from Keyword Planner via the Keywords Everywhere API, the same figure the Keywords Everywhere extension shows on Amazon search pages; Amazon publishes its own search counts only to brand owners inside Brand Analytics. To measure a list you already have, use the Search Volume Checker, and the eBay Keyword Tool shows the phrases eBay shoppers type.

Start from the landed cost of one unit (product, inbound shipping, prep), add the referral and fulfillment fees the Amazon FBA Revenue Calculator shows for your price, and check the margin that is left. If it is too thin, the Margin Calculator turns your cost and a target margin into the price you need; run that price back through the FBA calculator, because the referral fee grows with the price. Leave room for advertising: on a new listing, ad spend often takes another 10-30% of sales.

The calculators have no limit. Tools that look up keyword or product data have a per-day usage allowance so that a few heavy users cannot slow them down for everyone; the free allowances are generous for typical use, and signing in on a paid Keywords Everywhere plan raises the daily caps. Every plan has a cap, higher tiers simply get a higher one.