◇CARDGRADE LAB
Analysis workspaceHow it worksImportant notes한국어 ↗
PRIVATE • BROWSER-ONLY • NO UPLOAD

Know your trading card
before PSA grading.

Measure centering and document possible defects on Pokémon, One Piece and sports cards. Your photos never leave your browser.

01 / Select card02 / Photo & borders03 / Inspection report

02 / Photo & borders

LOCAL PROCESSING
Card category
Card side
▧Your photo will appear here
Align the outer card edgesCard outline

Use the sliders to align the blue rectangle with the physical outer edge of the card.

Align printed borderPrinted frame

Align the green rectangle with the printed design border. Some card layouts do not have a reliable measurable frame.

Measurement results

REFERENCE ONLY
Choose a photo and adjust the borders to begin.
Horizontal centering—
Vertical centering—
Measurements are estimates only and may differ from actual PSA grades.
Awaiting measurement

Reference threshold: Front 55:45 · Back 75:25

Centering alone cannot predict a PSA grade. This is a manual, image-based approximation, not an official grading result.
Saved measurements

Defect inspection checklist

Zoom in and inspect the photo. Checkboxes record defects you observe; they are not AI-detected.

How to measure

  1. Photograph the front or back of the card straight-on in even lighting.
  2. Upload the image and align the blue rectangle with the card's outer edges.
  3. Adjust the green rectangle to the inner printed design border.
  4. Review centering ratios and record any visible concerns.
  5. Measure the reverse side separately and compare both results.
Not affiliated with PSA or any grading company. The common PSA 10 centering reference (approximately 55:45 front, 75:25 back) is informational only. No grade, price, or grading outcome is guaranteed. Frameless designs may not be suitable for this measurement.

Privacy: Photos are opened and analyzed locally in your browser. No uploads, accounts, or server-side photo storage.

Terms & Disclaimer
Terms & Disclaimer

Centering measurements, reference assessments and inspection reports are estimates based on image boundaries selected by the user. We do not guarantee their accuracy, completeness or agreement with an actual PSA or other grading result. Camera angle, image quality, glare, card design and boundary placement can materially affect results. This service is not affiliated with PSA or any third-party grading company and does not issue official grades. Users should independently verify information before submitting, purchasing or selling cards. Nothing here excludes liability that cannot lawfully be excluded, including liability for intentional wrongdoing or gross negligence where applicable.