sherry tang

sherry tang

Building free tools for online sellers
#100568720 followers5 following
✨ 3 day streak
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About

Ecommerce operator and indie builder creating practical, free calculators for Amazon, eBay, Etsy and online sellers.

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Maker History

  • SellerTools Online
    SellerTools OnlineFree calculators for Amazon, eBay, Etsy sellers
    Jul 2026
    • 🎉
    Joined Product HuntJuly 24th, 2026

Forums

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1d ago

SellerTools Online - Free calculators for Amazon, eBay, Etsy sellers

Seller Tools Online is a free collection of 24 practical calculators and generators for ecommerce sellers. Estimate Amazon FBA fees and profit, eBay and Etsy fees, shipping costs, landed cost, margins, pricing, break-even ROAS, dimensional weight, and more. Every tool works without signup, so sellers can make faster sourcing, pricing, and fulfillment decisions before spending money or listing a product.
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