Midpoint

Midpoint is a card centering tool that lets you pre-grade your trading cards before you pay for professional grading. Upload a photo of any card — from Pokemon to sports cards — and the tool measures the left/right and top/bottom borders to the millimeter. It then gives you instant grade estimates for PSA, BGS, CGC, and TAG, so you can see if your card is likely to get a 10 before you ship it off.

Getting started is simple: snap a flat photo with your phone, upload it, and Midpoint’s ML model detects the outer card corners and the inner print frame in under a second. You can fine-tune the alignment by dragging edge handles, but the automatic detection is usually spot-on. The tool also runs an AI surface analysis that checks edges, corners, print quality, and holo patterns for wear. Every analysis includes a cleaned-up, straight photo that’s ready to share or list online. Bulk upload is supported — drop a folder of card photos and Midpoint will measure each one in sequence, showing you a table of centering ratios and predicted grades.

This tool is for anyone who collects or flips trading cards and wants to avoid wasting money on grading fees for off-center cards. A single grading submission costs $25–$50 and takes weeks, while Midpoint runs in seconds. It’s available on the web with free mobile apps for iPhone and Android, and your cards sync across devices. If you’re deciding which cards to grade or just want to catalog your collection with precise measurements, Midpoint saves you time and money.