Best marketplace for every item in your catalogue

Paste a CSV or a block of spreadsheet rows. Each item is run through the same fee model as the single-item comparison, and you see the winning channel per item and what staying on one channel costs per month. Free, no signup, nothing leaves your browser.

Your catalogue

First row is a header. Required columns: price and cost. Optional: name, shipping_charged, shipping_cost, other_cost, category (everything else, clothing, jewelry, electronics, grocery, beauty, home & kitchen, toys, sports), orders (per month, default 50). Up to 500 rows.

Read this first

Headline rates, not a statement. Fee rates change and the defaults are inputs from the single-item tool; confirm against your own statement. The winner is the best channel that brings buyers: your own store tops almost any table on arithmetic but sends nobody, so it is never recommended here. Monthly gain assumes each item's whole monthly order count moves with it, which a real channel switch rarely does; read it as an upper bound.

No warranty. This tool is provided free and as-is, without warranty of any kind. It is not tax, financial, or business advice. You are responsible for verifying its output before relying on it. To the maximum extent permitted by law the authors accept no liability for any loss arising from its use.

Best-effort hosting, no SLA. Free and experimental; it may be slow, moved, or taken offline without notice. Do not use it as a system of record.

Anonymous local counters only (catalogues compared), kept in your browser, honoring Do Not Track and Global Privacy Control, never any prices, names or costs.

Free and open source under an MIT licence — support is optional and never changes what the tool does. Back to the single-item comparison.