One Piece Collection Tracker
Log every card and sealed product you own, down to the variant, and see what the whole pile is worth at today's market prices.
The spreadsheet always loses
Most One Piece collections start life as a spreadsheet. It works for about three months. Then a set drops, you buy a case, you stop entering rows for a fortnight, and from that point on the file is a rough guess rather than a record. The prices in it went stale even sooner than the card list did.
A collection tracker fixes both halves of that problem. Adding a card is one tap on the card you are already looking at, so the record stays current without a dedicated data-entry session. And because the tracker sits on top of a card database that syncs market prices every day, the valuation updates itself whether or not you touch anything.
What you get out of it is a straight answer to questions that are otherwise annoying to compute: what is this collection worth, which ten cards are carrying it, what moved this week, how much of my total is sitting in sealed boxes, and did the thing I bought in March go up or down.
How to track your collection
- 1
Sign in with Discord
Your collection is tied to your account so it follows you between your phone and your desktop. One click, no password to invent.
- 2
Mark cards as owned while you browse
Every card in the database has an owned control. Set the quantity for the printing and variant you actually have. Sealed products and DON!! cards work the same way.
- 3
Add what you paid, if you want to
Cost basis is optional. Fill it in on the holdings you care about and the tracker starts showing gain and loss next to current value.
- 4
Watch the dashboard fill in
Total value, 7-day and 30-day change, card counts, biggest holdings and biggest movers all compute from your holdings and the daily price sync.
- 5
Share it, or do not
Collections are private by default. If you want a link to post, create one at a handle of your choosing and decide separately whether your name and your values are visible.
What the tracker actually shows you
Total value and recent change
The headline figure, plus how it moved over the last 7 and 30 days, with a chart of your collection value across the past month.
Top holdings and top movers
The cards carrying most of your value, and the ones that gained or lost the most in the last week.
A filterable holdings list
Filter by set, color, rarity, or cards versus sealed. Sort by value, quantity, name, card number or recent movement.
Cost basis and gain or loss
Record what you paid per holding and the tracker works out the unrealized gain or loss, per card and across the collection.
A dated history log
Every add and removal, grouped by month, each one stamped with the market price at the time so you can see what a card was worth when you logged it.
An optional public link
Pick a handle and share a read-only view. Your name and your values are separate toggles, and values are off until you turn them on.
Variants are tracked properly
One Piece printings make a mess of naive trackers. The same card number can exist as a base print, a foil parallel, an alternate art from a tournament pack and a reprint in a later set, and those four things are not worth remotely the same amount. A tracker that lumps them under one card number will happily tell you your collection is worth several times what it is.
Holdings here are keyed by printing and by variant, and each variant is matched to its own priced product, so a foil is valued as a foil and an alt art is valued as an alt art. Sealed products and DON!! cards live in the same collection with their own price lines rather than being left out of the total.
The one thing to be aware of: market values are English only. You can log Japanese cards, and they will appear in your collection, but there is no Japanese price feed behind them to value them with.
One Piece collection tracker questions
What is a One Piece collection tracker?
It is a record of which One Piece Card Game cards you physically own, how many copies of each, and what those copies are currently worth. Instead of a spreadsheet you update by hand, you mark cards as owned while browsing the card database and the tracker keeps the valuation current from daily market prices.
Do I need an account?
Yes, to track a collection. Your holdings are tied to your account, so you sign in with Discord. Browsing cards, sets, prices, price history and the market movers page needs no account at all.
Can I track sealed product as well as singles?
Yes. Booster boxes, packs, starter decks and other sealed products are tracked alongside singles and count toward your total value. DON!! cards can be tracked too.
Does it separate foils from normal copies?
Yes. Quantities are stored per variant, so three normal copies and one foil copy of the same card are two separate holdings valued at their own market prices, rather than one blended line.
Can I record what I paid for a card?
Yes. Each holding has an optional cost basis field. Fill it in and the tracker shows the unrealized gain or loss on that card, and rolls it into a collection-wide figure.
Is my collection public?
No. It is private by default. If you want to show it off you can create a public read-only link at a handle you choose, and you separately control whether your Discord name and avatar appear and whether market values are visible at that link. Values are hidden by default. You can stop sharing at any time.
Does it work for Japanese cards?
You can track Japanese cards, and the tracker follows whichever language you are browsing in. Market values are English-only, because the price data behind them covers the English print run.
Can I see how my collection has changed over time?
Yes, in two ways. The dashboard charts your total collection value over the last 30 days and shows 7-day and 30-day change figures. A separate history page logs every add and removal grouped by month, each stamped with what the card was worth at the moment you logged it.
Is it free?
Yes. There is no paid tier, no card limit and no ads on the tracker.
Start tracking your collection
Sign in with Discord, mark the first card as owned, and the valuation takes care of itself from there.
Open my collection