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Pre-screen before you pay

Grade your cards before you pay.

Free AI pre-grade in 30 seconds. No signup.

Upload a photo, get a PSA-style pre-grade in 30 seconds, and see likely value ranges before you spend on shipping and grading fees.

1 free

anonymous grade per day — no signup

4 sub-grades

centering, corners, edges, surface

Front + back

optional second photo for better context

PokemonMagic: The GatheringYu-Gi-Oh!One PieceLorcanaSports cards
MasterGrade AI card grading - upload cards and get instant grade estimates

Simple process

How it works

Three steps from photo to professional-level grade estimate.

01
Upload your card

Upload your card

Snap a photo or drag and drop. Front is required — add the back for a more confident centering and surface call.

02
AI analyzes every detail

AI analyzes every detail

Our vision model inspects centering, corners, edges, and surface against PSA-equivalent criteria in seconds.

03
Get your grade + value

Get your grade + value

A full sub-grade breakdown, overall score, confidence level, and estimated market value — ready to share or save.

Upload and review

Pre-grade your card without hunting through clutter.

Pre-grade your card free — 3 a day, no account required. Drop a front photo to start; add the back when you want a more confident estimate and a stronger explanation of what may hurt the final grade.

3 free anonymous grades/day0 credits
Trust notes: Front image is required, back image raises confidence, and every result breaks down centering, corners, edges, and surface instead of just spitting out one opaque score.

Using your free anonymous grade (3/day, no account). Create a free account to save your grades, build a collection, and unlock 3 free scans/day.

Front of card

Required for grading

Use a sharp, evenly lit photo with the full card visible and as little glare as possible.

Drag and drop also works on desktop.

Back of card

Optional, but helps accuracy

Use a sharp, evenly lit photo with the full card visible and as little glare as possible.

Drag and drop also works on desktop.

New

Scan a card → add it to a list

OCR reads the name + number, you tap once to save.

Save before you send

Why pre-screen before submitting?

Avoid expensive surprises

PSA submissions start at $20+ per card. Pre-screening catches flaws that would tank the grade before you pay shipping, insurance, and service fees.

Prioritize your best pulls

When you have 50 cards to consider, AI grading helps you rank them by expected return so you submit the ones most likely to slab at 9 or above.

Learn what graders see

Sub-grade breakdowns teach you to spot centering shifts, corner wear, and surface issues — skills that make you a sharper buyer and seller over time.

Need more than 5 scans a day?

Credits start at $2.99. Pro is unlimited at $12.99/mo.

Credit packs never expire — buy once, use whenever. Pro unlocks batch grading, CSV export, and your full collection dashboard. Either way, you keep every sub-grade report forever.

Trust the breakdown

See what the model is looking for before you submit

Collectors trust grading more when the rubric is visible. These diagrams explain the four condition buckets that drive the result and help set realistic expectations before upload.

Criterion view

Centering

The model checks how evenly the printed borders sit left-to-right and top-to-bottom on the card face and back.

Well centered121250/50 L-R, 50/50 T-BOff center519Border shifted right

Even great-looking cards fall out of gem-mint territory when the border balance is visibly off. Centering is often the first fast rejection signal for modern submissions.

10

Looks very even at a glance.

9

Minor imbalance, still strong.

8

Clearly off-center but acceptable.

7

Obvious shift affects eye appeal.

6-

Heavy imbalance or tilt.

Criterion view

Corners

The model looks for whitening, soft tips, fraying, bends, and other visible damage at each corner.

Sharp cornerClean tipNo whiteningWorn cornerSoft tipWhitening visibleCorner wear spectrum10Sharp9Touch8Light7Soft≤6Blunt

Corners are brutal on both vintage and modern cards. A tiny soft corner can be the whole difference between a strong submission and an expensive mistake.

10

Sharp with no visible wear.

9

Tiny touch of wear only.

8

Light whitening or softness.

7

Noticeable wear on one or more corners.

6-

Blunting, bends, or heavy whitening.

Criterion view

Edges

The model checks perimeter wear, chipping, silvering, whitening, and rough cuts around the card border.

Clean edgeSmooth, even edgeNo whitening or chipsWorn edgeChipping and whiteningalong card perimeterCommon edge issues: whitening · chipping · silvering · rough cuts · nicks

Edges expose handling damage fast. Different games print differently, but edge wear still kills top-end grades across the board.

10

Clean edge line throughout.

9

Very light edge wear.

8

Several small worn spots.

7

Visible whitening or roughness.

6-

Heavy chipping or broad wear.

Criterion view

Surface

The model looks for print lines, scratches, dents, stains, indentations, and gloss disruptions on the card front and back.

Clean surfaceEven glossNo scratches or marksSurface issuesprint linescratchdentPrint lines, scratchesdents, gloss disruptionHolo/foil cards graded more strictly

Surface flaws are easy to miss in bad lighting and expensive to discover after submission. Holo cards especially get punished here.

10

Clean surface with strong gloss.

9

Tiny print issue or faint mark.

8

Light scratching or print lines.

7

Visible defects affecting presentation.

6-

Dents, major scratches, or heavy wear.

New: Marketplace

Buy & sell graded cards direct

Browse listings from collectors. Pro members can list their cards in seconds — no listing fees.

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AI Card Grading App for Pokémon, Sports, MTG, and More