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Cardboard Connoisseur

The back office for people who sell cards.

Every card you own with what you paid, priced every day from several sources, listed on eBay, TCGplayer, Whatnot and your own website — and taken off all of them the moment it sells.

From $29 a month. Cancel any time — nothing is charged during the trial.

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Today page in Cardboard Connoisseur, from the demo shop
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Show mode page in Cardboard Connoisseur, from the demo shop

One app, three ways people use it

Collectors

Your collection with what you paid and what it's worth today. Set checklists, sell signals when a card peaks, and an insurance schedule when you need one.

Flippers

eBay listings under what they sell for, with the profit after fees worked out. The odds a raw card grades high enough to be worth sending in. List the winners everywhere at once.

Card shops

A till that scans barcodes and takes trade-ins, your own website with pickup holds, consignment, events, staff logins and an end of day that tells you if the drawer is right.

Every card you own, with what you paid

Singles, slabs, sealed and bulk in one list, each with its cost, condition and where it lives. Nothing is ever deleted when it sells, so the history stays.

  • Cost, condition, grade, location and quantity on every item
  • Add a slab by scanning its PSA or CGC cert — details fill themselves
  • Type a 500-card pile as shorthand ("17 gold/50, 44, 102 refractor x3")
  • Bulk bins: count commons by the box, pull out the few worth listing

Self-hostedCollectorShopShop Pro Everything in every card you own, with what you paid

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Inventory page in Cardboard Connoisseur, from the demo shop

Prices that check themselves

Every card is valued daily from several price sources. Where they agree it just updates; where they don't, it lands in a short list for you to decide.

  • TCGplayer, eBay sold, PriceCharting and Card Hedge values side by side
  • Each value shows where it came from and how sure it is
  • Card matching that won't price Base Set from Base Set 2
  • Repricing suggestions — every change is yours to approve

Self-hostedCollectorShopShop Pro Everything in prices that check themselves

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Pricing page in Cardboard Connoisseur, from the demo shop

List once, sell everywhere

Push a card to eBay, TCGplayer, Whatnot, Shopify and your own site from one screen. When it sells anywhere, it comes off everywhere else.

  • eBay listings created for you, with category and item specifics checked first
  • TCGplayer and Whatnot bulk files in their exact formats
  • Shopify products with price and stock kept in step
  • Sold on one channel, removed from the rest — no overselling

Self-hostedCollectorShopShop Pro Everything in list once, sell everywhere

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For sale page in Cardboard Connoisseur, from the demo shop

Find cards worth buying

It watches eBay for cards listed under what they sell for, works out the profit after fees, and tells you the odds a raw card grades well enough to be worth sending in.

  • Underpriced listings with profit after fees, tax and shipping
  • Top 25 raw cards to buy and grade, weighted by the odds of each grade
  • Watch any card at your price (the ☆ on every card): an email when one is listed under it
  • Watch rules by game, set and rarity — or every set

Self-hostedCollectorShopShop Pro Everything in find cards worth buying

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Deals page in Cardboard Connoisseur, from the demo shop

A till built for cards

Scan a barcode or a shelf label, add a trade-in, take cash, card or store credit, print a receipt. End the day knowing whether the drawer is right.

  • Barcode and QR scanning with any USB scanner or a phone
  • Trade-ins on the same sale, valued at your buy prices
  • Store credit, gift cards, loyalty points and sales tax
  • Card payments through Square, recorded automatically

Self-hostedNot in CollectorShopShop Pro Everything in a till built for cards

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Till page in Cardboard Connoisseur, from the demo shop

The things that bring people back

Holds, buy offers, consignment, events and pre-orders, each with its own page instead of a spreadsheet — and the emails go out by themselves.

  • Pickup holds customers place from your website
  • Sell-to-us offers with cash and store-credit prices
  • Consignment with a page for each consignor and automatic payouts owed
  • "Tell me when it comes in" requests that double as a buying guide

Self-hostedNot in CollectorShopShop Pro Everything in the things that bring people back

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Pickup holds page in Cardboard Connoisseur, from the demo shop

Your shop's own website

Your stock, live, under your name and colours — and a real checkout: customers buy, pay and have it shipped, no eBay or Shopify in the middle. A card is on the site the moment it's in inventory and comes off when it sells. Customers reserve cards for pickup, offer you their collections, and ask to be told when something comes in.

Self-hostedNot in CollectorShopShop Pro

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Your website page in Cardboard Connoisseur, from the demo shop
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On a phone page in Cardboard Connoisseur, from the demo shop

Click around a real shop first.

The demo is a full install filled with a made-up shop: two months of sales, stock, holds, trade-ins and consignment. Sell something, reprice something — it resets every night.

Feedback

Not working, missing something, or a question? It comes straight to us.