Your cards.
Finally under control.
Singles, sealed and graded in one place. Track collection value, profit/loss and set completion, based on real eBay prices.
Most collectors manage a collection worth thousands… in Excel.
Scattered notes, dozens of price tabs, no idea about total collection value. Cardium ends the manual checking of each card separately.
You don't know what your collection is worth
Summing up the value of cards, sealed and slabs in Excel takes hours. And it'll be outdated in a week.
You don't know if you made or lost money
Without tracking purchase prices and current value, you can't calculate real P&L on the collection.
You don't know what you're missing
Building complete sets without a tool is like searching for a needle in a haystack. You know something's missing, but not what.
From zero to full portfolio
in a few minutes.
Nothing to install or configure. Log in, add cards, see results.
Find the card
Search by name or navigate to a set. Full Pokémon TCG card database with images, rarities and variants.
Add to collection
Click 'I have it' and optionally enter the purchase price. The card goes to your portfolio with current eBay market price.
Track value and P&L
Dashboard shows total collection value, gain or loss since purchase, and price history of each card.
Cardium is for collectors.
Of every kind.
Whether you're building complete sets, investing in sealed, holding graded cards, or just want to know how much your collection is worth.
You build complete sets
Percentage completion, list of missing cards broken down by variants and reverse holo. Know exactly what to buy and how much it'll cost to complete the set.
You collect sealed products
Booster boxes, ETBs and blisters. Add with purchase price and track their current market value. See how much sealed you have and what it's worth in total.
You collect graded cards
PSA, BGS, CGC, ACE and SGC slabs with cert number, sub-grades and status: in shipping, in grading, received.
You count every penny
Enter purchase price and Cardium compares it to current market value. Dashboard shows profit/loss on the entire portfolio, not just individual cards.
Everything a
serious collector needs.
Cardium is not just another card list. It's a complete Pokémon TCG collection management tool.
Portfolio with valuation
Dashboard sums up the value of all cards, sealed products and slabs based on current market prices. One look, full picture.
Profit / Loss
Enter purchase price for any card, sealed or slab. Cardium compares it to market price and shows gain or loss per position and across the whole portfolio.
Prices from eBay sold listings
Prices come from closed eBay auctions, not seller listings. That's the difference between the price someone expects and the price someone actually paid. Covers every set, including 2024-2026.
Set completion
Cardium shows completion of every set as a percentage and lists missing cards broken down by variants and reverse holo. Collect smart, not randomly.
Wishlist
Add cards to your wishlist and track their market price. Know exactly what you're looking for and what it costs before you find an offer.
Public profile
Share your collection with a public link cardium.pl/u/yourname with granular privacy settings. Show as much as you want.
Building a shopping list
from multiple sets at once.
The list builds itself.
Enable list mode and browse any set, clicking cards you're interested in. Every added card goes to a panel grouped by set with current eBay price. Copy the whole list with one click.
How collectors
use Cardium.
Different needs, one tool. Specific scenarios from a real collector workflow.
Instead of manually ticking off in a spreadsheet, you open the set in Cardium. Completion shown as percentage, missing cards listed with images and prices. Know exactly what to buy and how much it'll cost to complete the set.
Add ETB with purchase price. Dashboard shows current market value and P&L. A month later check price history and decide if it's time to sell.
Each slab in a separate entry: card, PSA grade, cert number, sub-grades and status. Know which slabs are in shipping, which are waiting for grading and which you already have in hand.
Portfolio in Cardium shows total purchase value vs. total market value. Not an estimate, but a specific number based on eBay prices, combined for the whole portfolio.
Still managing your collection in Excel?
Excel works. But as your collection grows, the spreadsheet becomes a full-time job. Cardium does the same, automatically.
Frequently asked questions.
Is Cardium free?
Where do card prices in Cardium come from?
Does Cardium support sealed products like booster boxes and ETBs?
Can I track graded cards (PSA, BGS, CGC slabs)?
How does profit/loss work in Cardium?
Does Cardium show set completion?
Can I share my collection publicly?
Does Cardium work on mobile?
Can I export my collection data?
Does Cardium support new sets from 2024 and 2025?
What is a Pokémon TCG collection tracker?
Is Cardium affiliated with Nintendo or The Pokémon Company?
Stop guessing.
Start knowing.
A collection worth thousands deserves a better tool than a spreadsheet. Cardium is free, ready to use now and requires no setup.