Poke Center measures the centering of a Pokémon card from a photo. Scan a card and it reports the left/right and top/bottom border percentages, per-corner radius measurements, and whether the card meets PSA 10 or PSA 9 centering requirements — before you spend money submitting it for grading.
Photograph the card on a plain dark background. The tool detects the card's outer edge and the inner border where the artwork begins, measures each of the four borders, and converts opposite pairs into centering ratios. A perfectly centered card measures 50/50 on both axes. Results include a downloadable PDF report and a shareable link.
Note: full-art, Special Illustration Rare, and rainbow rare cards have artwork that reaches the card edge, so front centering cannot be measured on them.