FeeFellow is a small, independent site that makes free calculators for people who sell on online marketplaces: Etsy first, with eBay and Amazon tools in the works.
Marketplace fees are the biggest silent cost in most small shops, and they change often. Most fee calculators available today were written once, years ago, and quietly went stale: they miss newer charges like Etsy's regulatory operating fee, blur the two Offsite Ads tiers together, or hide behind a signup wall. A seller pricing from a stale calculator can underprice every item in their shop and never know why margins feel thin. FeeFellow exists to be the boring, current, free alternative.
If a rate on this site does not match what your marketplace actually charged you, we want to know. Send the details through the contact page. Confirmed errors are corrected in the calculators and logged publicly on the rates page with the date of the fix. A visible correction history is more trustworthy than a claim of perfection.
The calculators are free and stay free. The site is supported by a paid template bundle for sellers who want their bookkeeping and inventory in one place, and by affiliate links to seller tools, always labelled where they appear. Neither affects any calculation: the math is the math, whoever pays us.
FeeFellow is not affiliated with or endorsed by Etsy, Inc., eBay Inc., or Amazon.com, Inc. Marketplace names are used only to describe what the calculators calculate. Figures produced here are estimates for planning; your seller account statement is the final word on what you were charged.