# Midpoint vs Centering Lab: free centering checkers compared

Facts checked 2026-10-14. Page: https://www.cardcenteringtool.com/vs/centering-lab

## Short answer
Both have a free browser check. Pick Centering Lab if you want centering only and want the photo to stay in your browser. Pick Midpoint if you then want the grade estimated and the card priced, or want a native iPhone or Android app.

## Choose Centering Lab if
- You want the photo to stay on your device
- You want a free API for your own tools
- You only need centering ceilings

## Choose Midpoint if
- You want a grade estimate, not just centering
- You want raw and graded prices for the card
- You want native apps and a saved collection

## Features
| Feature | Midpoint | Centering Lab |
| --- | --- | --- |
| Measures centering from a photo | Yes (automatic outer edge + print frame, 8 handles, ratios and mm) | Yes (engine proposes lines, you confirm; photo stays in the browser) |
| Estimates the grade (corners, edges, surface) | Yes (PSA, BGS, CGC and TAG estimates with subgrades) | No (centering ceilings only, by its own description) |
| Identifies a card from a photo | Yes | Not stated |
| Reads graded slab labels | Yes (PSA, BGS, CGC, TAG) | Not stated |
| Raw (ungraded) market prices | Yes | Not stated |
| Graded prices (PSA, BGS, CGC…) | Yes (PSA, CGC, BGS, SGC, TAG by grade) | Not stated |
| Price history charts | Yes | Not stated |
| Price alerts | Yes (push + email) | Not stated |
| Collection value tracking | Yes | Not stated |
| Bulk scanning | Yes (up to 200 cards, or one photo of a whole binder page) | Not stated |
| CSV export | Yes | Not stated |
| Buy and sell inside the app | No (links out to live eBay listings) | Not stated |
| Community / forum | Yes | Not stated |

## Pricing: Centering Lab
- Free: $0, no account — Website tool, free REST API and MCP tools

## Pricing: Midpoint
- Free: $0 — All prices (raw and graded), price history and sold listings; 2 centering or grading analyses; 2 photo lookups; 3 Chat questions a day; free centering checker on the web (3 a day, no account)
- Weekly: $9.99/week — Unlimited centering, AI grading, photo lookup, bulk and scan-a-sheet, adding cards to your collection, unlimited Chat
- 6 months: $49.99 — Same as Weekly
- Annual: $79.99/year — Same as Weekly

## Switching
Nothing to move.

## FAQ
### Is Midpoint’s centering check free?
Yes: cardcenteringtool.com/centering-calculator checks 3 cards a day with no account, using Midpoint’s own detection model.

## Sources for Centering Lab
- Tool, FAQ, free API: https://centeringlab.com
- Method and “no paid tier”: https://centeringlab.com/about/
- Published accuracy figures: https://centeringlab.com/centering-accuracy-test/

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Prices are USD market values from real sold listings, refreshed daily. Measure your own copy's centering and get a grade estimate with Midpoint (https://www.cardcenteringtool.com) before paying a grading fee.