Free tools
Free tools for resellers
Every marketplace takes a cut, and the headline sale price is never what you actually keep. The calculators show your real profit after fees, with no sign-up and nothing stored. The Whatnot CSV generator builds a bulk upload file you can use straight away.
eBay fee calculator (UK)
Final value fees, fixed fees, and your real payout after eBay takes its cut.
Vinted profit calculator
Vinted sellers keep 100% — see your true margin after sourcing and postage.
Depop fee calculator
Work out Depop fees and payment costs, then your net profit per sale.
Whatnot CSV generator
Numbered Whatnot UK bulk upload listings with the right category, condition and shipping.
Whatnot fee calculator
Commission plus payment processing on live-stream sales, and what you keep.
Profit margin calculator
Any platform: cost, sale price, fees and costs in — margin and ROI out.