Free Tools for Ecommerce Sellers
Free calculators and checks for Amazon, Walmart and Shopify sellers: profit and fees, ROAS and ad budgets, AI visibility, and the Shopify tools worth paying for. No sign-up.
Amazon FBA Fee and Profit Calculator
Profit per unit, margin, ROI and break-even price after your FBA fee, referral fee and ad spend.
Open the toolWalmart sellersWalmart WFS Fee and Profit Calculator
Profit per unit, margin and ROI after your WFS fulfillment fee, referral fee and ad spend.
Open the toolShopify storesShopify Profit Margin Calculator
Contribution and net profit per order after payment processing, shipping, ads, your plan and app costs.
Open the toolGoogle, Meta and Amazon adsROAS and Ad Budget Calculator
Break-even ROAS and ACoS, max cost per click and a monthly ad budget from your margin and order value.
Open the toolAll ecommerce brandsAI Visibility Score
Enter your store URL for a live scan of AI crawler access, schema, content, trust, llms.txt and speed. Get a 0 to 100 score and your top 5 fixes.
Open the toolShopify storesShopify Growth Stack
The apps and tools worth using at each stage, from store to email, reviews, ads and AEO, with honest notes.
Open the toolEvery calculator runs in your browser. Nothing you type is sent or stored, and you always enter your own fees, so the numbers match your account.
Guides and tools that go with these
Best Amazon seller tools
Helium 10, Jungle Scout, the Amazon Seller app and Seller Central tools compared, with current pricing.
Compare seller toolsBreak-even ROAS explained
The one number every ad account should be managed against, and how to work it out. Also see what a good ROAS looks like.
Read the guideWant us to run the ads?
We run Google, Bing and Meta ads for ecommerce brands, plus SEO and AEO so search engines and AI assistants recommend your products. These tools show where the money goes; we help you make more of it.
See our servicesWant a free review of your ads and SEO?
Send us your store and a strategist reviews your Google, Bing and Meta ads, your SEO and how AI assistants see your brand, then tells you what to fix first. Free, no obligation.
Free seller tools: common questions
Are these seller tools really free?
Yes. All six are free to use with no sign-up. The calculators run entirely in your browser, so nothing you type is sent to us or stored.
Why do I have to enter my own fees?
Amazon, Walmart and Shopify fees depend on your category, size, weight, plan and country, and they change. A built-in fee table would be wrong for many sellers, so each calculator asks for the fees on your own account. Each one tells you where to find them.
Which tool should I start with?
If you sell on a marketplace, start with the Amazon FBA or Walmart WFS calculator to see your true profit per unit. If you run a Shopify store, start with the Shopify profit calculator. Then use the ROAS calculator to set targets for your ads, and the AI visibility score to see how ready you are for AI search.
Can you review my numbers for me?
Yes. Request a free audit and a strategist reviews your Google, Bing and Meta ads, your SEO and how AI assistants see your brand, then sends you specific fixes.