Cardmarket Companion: Pricing & Order Tools

Price and pack faster when you sell, never buy the same card twice when you buy. Cardmarket helper for MTG, Pokémon & more.

Cardmarket Companion is an unofficial browser extension (Chrome and Firefox) for Cardmarket sellers and buyers. It prefills your listing prices from live trend data, keeps you competitive against pro sellers, turns order pages into a pick-and-pack checklist, and stops you from buying the same card twice. Works with every game available on Cardmarket. No more typing prices card by card. ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 💰 PRICE FASTER • One-click price prefill from trend (1, 7 or 30 days), lowest price or average price • Pro Mode: auto-undercut the first professional or power seller by a fixed amount or a percentage • Price offsets per mode, plus a minimum price floor so nothing is ever listed too cheap • Already listed a card? One click on your own offer moves it to the suggested price, without relisting • Tick Foil, Reverse Holo or First Edition and the offer list filters itself on the spot, price guide included • Hide the languages you never deal in: card pages open without those offers, and the suggested price follows • Bulk listing: card images, a percentage box with undo, a "never below" floor and a quick expansion filter • Preview panel before you list: card, condition, price and price source 📦 PACK ORDERS WITHOUT MISTAKES • Tick off each line as you pick it; a counter shows what is left, saved per order so an interrupted pack resumes • Works on single orders and on "Show all articles in paid shipments", every game included • Quantities colour-coded (2-4 amber, 5+ red) so you never ship one card when two were sold • Group an order by expansion to match how your stock is filed • Cards below Near Mint or in an odd language are flagged for a second look 🛒 BUY SMARTER • Never buy the same card twice: a card page tells you when you already ordered it recently, or when it is already in your basket • Your basket flags every card you already ordered, with the order it came in • One click in My Purchases reads your recent orders (last week, last month or last 3 months); new orders are added by themselves at checkout • Estimated shipping cost shown on listing pages, no need to fill a basket to find the real total • Card images instead of tiny camera icons on Offers, Products, Wants, Shopping Wizard and Orders ❤️ WANTS LISTS • Search all your wants lists at once and see which list holds a card • Search by the card name you see or by its English name, accents and punctuation ignored • "Show every want" puts all your lists in one table • "Add to wants list" opens on the list you used last ⚡ WORK YOUR WAY • Reusable comment presets (on card pages and bulk listing) and a default message signature • Live tracker: cards listed and total value as you go • Copy and export your card list to share with friends or teammates • Toggle card images per page, hide social buttons, keep the layout you want 🔒 PRIVACY Your prices, orders and wants lists stay in your browser. When the extension reads your own orders or wants lists, it does so slowly, one page at a time, so Cardmarket is never flooded. Nothing about your business is sold or shared. ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ Built by a Cardmarket seller, for Cardmarket sellers and buyers. Join the Discord from the extension to request features or report bugs. Not affiliated with or endorsed by Cardmarket / Sammelkartenmarkt GmbH & Co. KG.