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One Piece card scanner

Scan the card. Keep the right print.

GrandFolio reads the card code, checks the visual version on-device, and asks for confirmation whenever the result should not be guessed.

Get the card scannerTrack your collection
PrivateProcessing stays on-device
Single + batchScan at your pace
Variant-awareBase, parallel, and reprint

How it works

Scan the card. Keep the right print.

GrandFolio reads the card code, checks the visual version on-device, and asks for confirmation whenever the result should not be guessed.

  1. 01

    Line up a card

    The live guide helps position the card while GrandFolio reads its printed set code.

  2. 02

    Review the version

    A clear match opens immediately; close visual matches stay visible for a quick manual choice.

  3. 03

    Choose quantity and condition

    Add one card or continue through a batch before reviewing the whole queue.

Honest recognition

Uncertainty is a choice, not a hidden error.

Some foil finishes and related artworks are genuinely close. GrandFolio surfaces candidates when confidence is not high enough.

  • Printed card code anchors identity
  • Visual signature narrows the variant
  • Low-confidence results require confirmation

Batch workflow

Work through a stack without losing context.

Batch scanning keeps a visible queue, provides immediate feedback, and lets you review every addition before committing it.

  • Continuous scanning
  • Quantity and condition controls
  • Final review before bulk add

No cloud vision

Fast feedback without sending frames away.

Recognition runs locally, which keeps the scanner useful when connectivity is poor and keeps card imagery private.

  • On-device OCR and matching
  • No per-scan cloud upload
  • Local-first collection update

Private by design

Your cards stay in your hands.

Card recognition runs on your device. Camera frames are not uploaded for scanning, and an account is optional.

GrandFolio · 01—05

Explore GrandFolio

GrandFolio brings your One Piece TCG collection into one private, beautifully organized log—from the first scan to the next deck or trade.

01One Piece TCG collection tracker

Organize your One Piece TCG collection by set and print.

Track cards by exact version, condition, and quantity while GrandFolio turns every set into a clear map of owned cards and missing gaps.

02One Piece card price tracker

See the market behind every card.

GrandFolio connects exact card variants to Cardmarket and TCGPlayer context, historical movement, alerts, and your total collection value.

03One Piece TCG trade check

Compare the trade before cards change hands.

Add exact variants to each side, review current market context, and see whether the value gap is balanced, slight, or significant.

FAQ · One Piece card scanner

Card scanner FAQ

Can the scanner identify alternate art cards?

GrandFolio narrows variants using the card code and visual matching. When two versions remain too close, it asks you to choose.

Can I scan several cards in a row?

Yes. Batch mode keeps scanned cards in a review queue before they are added together.

Does scanning require an internet connection?

Recognition is performed on-device. Current price refreshes and optional synchronization require connectivity.

Made for iOS and Android

Download on the App StoreStore link added at launchGet it on Google PlayStore link added at launch