Bringing the card index onto your phone

Once. After this, scanning works with no network at all — on a plane, in a card shop basement, anywhere. Your scans never leave this device.

0%Preparing manifest

Download log

starting…

frame unavailable YOUR SCAN · BOTTOM ⅓

The bottom third of the frame you just scanned — set symbol and collector line. Match it against the rail.

candidates

Price spread

Card

—foil —

0you own —printings —value

Your copies

All printings

Open on mtgdb.orgcombos · legalities · EDHREC

Index bundle

loading

Compute backend

Processing area

Card area reads only the outlined guide. Full view processes the whole frame.

Neural detectorLocate cards with the on-device pose model — robust to clutter, glare, sleeves and partial cards. Classical edge detection refines its corners and covers anything it misses. Aggressive detectionHull gate and shortlist retry. Rescues glare and low light; occasionally invents an edge. Reference artworkLoad real Scryfall artwork in comparisons and collection views. Detection overlayOutline every quad the detector finds in the live preview. Diagnostic — it shows what was found, not what was recognised. Capture crop outlineDraw the exact region sent to recognition. In card-area mode it extends slightly past the visible guide.

Advanced scannerHold, motion, and multi-frame consensus.

Hold framesStable frames before recognition Position toleranceAllowed movement in pixels Relative toleranceAllowed movement vs. card size Motion settle framesRead a continuously moving card after this many frames; 0 disables it Consensus framesPerspective-corrected card crops kept for voting Consensus agreementFrames that must identify the same card

Advanced cameraValues are saved and reapplied to this browser's active camera.

Start the camera to detect supported controls.

Use 0/1 for auto controls, for example autofocus=0. Browser camera APIs do not expose every OpenCV/UVC control; unavailable rows stay visible and disabled.

mOn-device collectionNo account endpoint is configured. Nothing is claimed to be synced.

Recognition stages

detection · retrieval · ORB/RANSAC · OCR · set symbol · decision

The production recognition modules remain unchanged; this interface only consumes their results. Core retrieval is cached offline. ORB descriptor spans are cached as they are used, so a never-seen span still needs the local asset host.

Stored data

Removes everything this page has written to the browser — the service worker, every cache including the downloaded index bundle, settings, the on-device collection, cookies and databases — then reloads so the newest version of the app is fetched from the network.

mtgscan.org

Bringing the card index onto your phone

This batch

Printing resolver

Collection

Card

Your copies

All printings

Engine & account

Index bundle

Compute backend

Processing area

Recognition stages

Stored data

Detection

Bringing the card index onto your phone

Scan cards

Your copies

All printings

Index bundle

Compute backend

Processing area

Recognition stages

Stored data

Detection