gemly_card

Gemly measures the centering of your trading cards.

• Snap a photo — the card is auto-straightened

• Card edges align automatically; just set the inner artwork frame

• Zoom in on a ruler grid for precise, pixel-level adjustment

• Instantly see top/bottom and left/right border ratios (e.g. 52/48) and a centering score

• Save your measurements and revisit them anytime

Know exactly how well-centered your card is before you send it off for grading.

Note: Gemly is a reference measuring tool and does not provide official grades.