Hey Product Hunt! 👋 I built ConvertProHub because I kept seeing sellers on Etsy and eBay ask: "Which marketplace actually lets me keep the most money?" Every platform has its own fee structure — listing fees, transaction fees, payment processing, seller fees — and nobody wants to open 10 separate calculators to compare. So I built one page that does it all. Here's what it does: 🔢 Enter your sale price, shipping cost, and item cost 📊 See a ranked table of 10 marketplaces (Etsy, eBay, Amazon, Poshmark, Mercari, Depop, Facebook Marketplace, StockX, Whatnot, Grailed) 💰 Instantly see your net profit and fee rate on each ⚡ No signup, no uploads, no waiting — results in under 1 second Try it here: https://convertprohub.com/fee-ca... It's completely free, everything runs in your browser, and your data never leaves your device. I'm planning to add more tools for sellers and creators — image compression, QR codes, text tools. What free tool do you wish existed? Drop it in the comments below 👇 Happy to answer any questions!

ConvertProHub

Free online fee calculator & tools for sellers

Free online fee calculator & tools for sellers