Marketplace math
Merqly
Run the fees before you buy the ads. Fifteen browser tools for FBA, eBay, Etsy, Shopify, TikTok Shop, barcodes, titles, and DIM weight — editable rates, no login.
Browse tools
Fees
- Amazon FBA fee & net profitReferral + FBA + storage vs your cost — what is left after a sale.
- eBay profit calculatorFinal value, payments, and shipping you eat — net per sold item.
- Etsy fee breakdownListing, transaction, processing, offsite ads — order leftover.
- TikTok Shop fee & profitCommission, affiliate cut, fulfillment — live-commerce net.
Margins
- Shopify profit marginPrice minus COGS, payments, apps, shipping you cover.
- Print-on-demand profitBase + print + take rate + shipping — profit per print.
- Wholesale price from target marginBack into wholesale from cost and the margin you need.
- FBA reimbursement estimateRough claim size for lost or damaged FBA units.
Listings
- Keyword ideas from seedsPaste seeds or titles; get local n-gram ideas. No Amazon crawl.
- UPC / EAN barcode generatorCheck digit + SVG for UPC-A / EAN-13. Not a GS1 license.
- Background removerCut listing photo backgrounds on-device. Nothing uploaded to us.
- eBay title optimizerLength, keywords, stuffing flags — local score, no eBay API.
- Shopify product CSV templateStandard product headers + a sample row you can download.
Notes
Math stays on your machine. Default fee and tax figures are dated planning numbers you can overwrite. Confirm in each platform’s seller tools before you reorder inventory or open a claim.