Grade Smarter. Submit Better.
Upload your card. Drag the border lines. Get instant PSA centering data
before you pay for a submission you'll regret.
Everything you need to
evaluate centering
Draggable Border Lines
Independently adjust the outer card edge (black dotted) and inner art box (yellow dashed) with pixel-precision dragging on any axis.
5× Precision Loupe
A magnifying loupe activates while dragging and locks to the active line — not your cursor — so you nail the edge every time.
Rotation Correction
Nudge card rotation in 0.5° increments to straighten tilted photos before measuring, for cleaner and more accurate results.
Live Grade Verdict
Left/Right and Top/Bottom ratios update in real time. See your PSA grade range instantly as you move the lines.
Overlay Stats Badge
A repositionable stats badge overlays your card — move it to any corner so it never covers the edge you're measuring.
PNG Export
Export your annotated card image with the grade verdict embedded. Perfect for saving records or sharing your analysis.
PSA Centering Standards
| Grade | Front Centering | Back Centering | Notes |
|---|---|---|---|
| PSA 10 | 55/45 or better | 60/40 or better | Gem Mint — tightest standard |
| PSA 9 | 60/40 or better | 65/35 or better | Mint — slight off-centering OK |
| PSA 8 | 65/35 or better | 70/30 or better | Near Mint-Mint |
How It Works
Upload Your Card
Take a flat, straight-on photo of your card and upload it directly in the browser. No account, no data stored.
Align the Lines
Drag the outer (black dotted) and inner (yellow dashed) border lines to match your card's actual edges precisely.
Read the Verdict
Live L/R and T/B centering ratios update instantly. See your PSA grade range right on screen.
Submit with Confidence
Know before you spend. Export your analysis, compare multiple copies, and only submit your best candidates.