Midpoint - Card Centering Tool

Midpoint is a card centering tool that measures trading card centering to the millimeter using AI, instantly predicting PSA, BGS, CGC, and TAG grades so you only pay to submit cards worth grading.

What is Midpoint?

Midpoint (by Kolourr) is a free-to-try web and mobile tool that analyzes standard trading card photos—Pokémon, Magic: The Gathering, Yu-Gi-Oh!, sports cards, and more. Upload a flat phone photo, and its custom ML model detects all eight card edges in under a second, outputting left/right and top/bottom centering ratios in millimeters, plus instant grade predictions for PSA, BGS, CGC, and TAG. It also pulls real eBay sold prices for raw and graded copies of the exact card identified, including a 6-month price history and an ROI verdict showing whether grading is worth the submission fee. Midpoint runs on the web, iPhone, and Android, with sync between devices.

Key Features

• Centering detection — AI locates both the outer card corners and inner print-frame corners, measuring L/R and T/B offsets to the millimeter; eight drag-to-align edge handles let you fine-tune if needed.
• Grade prediction — Instantly estimates a grade from PSA, BGS, CGC, and TAG based on your measured centering ratio and surface condition.
• Surface analysis — Scans corners, edges, print quality, and holographic condition, flagging specific flaws (e.g., "faint planking from age") alongside a clean/major/minor rating.
• Image cleanup — Automatically removes backgrounds, shadows, and fingers from photos, straightens the card upright, and produces a slab-ready image for sharing or listings.
• Bulk processing — Drop a folder of card photos; Midpoint measures each in sequence, displays predicted grades in a table, and lets you mark keepers to save to your collection.
• Market value & ROI — Identifies the exact card, pulls real eBay sold listings for raw and PSA-graded copies, shows a 6-month price trend, and calculates the net gain after grading fees.
• Cross-platform sync — Your scans, saved cards, and measurements sync between web, iPhone, and Android so you can start on your phone and finish on desktop.

Who is it for?

• Collectors deciding whether to grade — Snap a card photo, see its centering grade and predicted PSA 10 estimate (e.g., +$2,132 after fees for Blaine’s Arcanine), then decide whether to spend $25–$50 on submission.
• Resellers with large inventories — Bulk-upload an entire box of cards, sort by centering score, and only ship cards that are likely to return a profit after grading and selling.
• Listers and content creators — Use the auto-clean, straighten, and background-removal feature to produce professional, slab-ready images for eBay listings or social media posts without manual editing.

How does Midpoint work?

Upload or snap a flat photo of your card (any lighting, any background). Midpoint’s ML model detects the four outer card corners and four inner print-frame corners in under one second, then displays the centering ratio (e.g., 48/52 L/R) with millimeter measurements. After measuring, it runs a surface scan, fills in the card name automatically, and shows predicted grades and current market value—all in about 30 seconds. You can fine-tune alignment by dragging edge handles, rotate or zoom, and save results to your collection.

Pricing

Midpoint is freemium. You get 2 free analyses on signup. For unlimited measurements, choose a weekly or semi-annual subscription plan. Start free → | See pricing

FAQ

Is Midpoint free?

Yes—you can sign up and perform 2 free card analyses. After that, unlimited measurements require a weekly or semi-annual subscription.

Which card graders does it support?

Midpoint predicts grades for PSA, BGS, CGC, and TAG. Each scan shows estimates for all four side by side.