176,354 printings across 5 games

Know what the box in your closet is worth.

Every printing of Magic, Pokémon, Yu-Gi-Oh!, Lorcana and One Piece, what each one sells for today, and an app that reads the card in your hand.

Everything above works in this browser. The app that reads a card through the camera is still being built and is not on either store yet — this is what it does and what it will cost.

Black Lotus

Read off the bottom edge30A 228

Black Lotus30th Anniversary Edition

$3,299.99

Non-foil, priced 2026-09-08. One of the most valuable printings in the catalogue today.

The most valuable printings today

The dearest card in the catalogue, across every game, refreshed every night from public market feeds.

Priced 2026-09-09. Informational estimates for hobbyists, not an appraisal.

Got a box, not a card? Start with the set.

Searching by name only helps if you know what to search for. Find the set your cards came from, by its symbol or by roughly when you were buying packs, and OtterDex lists the twenty-five cards in it worth pulling out of the stack.

It would rather ask than guess.

A scanner that quietly picks the wrong printing is worse than one that admits it could not tell, because a wrong card you never notice is a collection you can no longer trust. So the app answers a scan in one of three ways, and never a fourth.

It found the card

The set code and number resolved to one printing, and the name agrees. You get the card and its price.

It found a few

Several printings fit what it read. You pick, because you are holding the card and it is not.

It could not read it

Too dark, too angled, or a printing the catalogue does not have yet. It says which, and you scan again.

What it costs. Almost nothing.

Everything that answers a question is free: scanning, what a card is worth today, export, and no account, ever. The subscription lifts a limit. It does not unlock an answer.

Free

No payment and no sign-up, ever.

  • Unlimited scanning
  • Every price visible
  • 100 cards in your collection
  • Export whenever you want
  • No account. Your collection stays on your phone.

Standard

A yearly subscription, priced by the store in your currency.

  • Everything in Free
  • 1,000 cards in your collection
  • Price history on every card you own

Collector

A yearly subscription, priced by the store in your currency.

  • Everything in Standard
  • No limit on your collection
  • What the whole collection has been worth, over time

There is no sign-up. Your collection is a file on your phone, backed up with everything else on it, and yours to export at any time. If your subscription lapses nothing is taken from you: the collection stays readable, exportable and yours.

OtterDex is still being built and is not on the App Store or Google Play yet. When it is, it will be linked here — and everything on this website will keep working without it.