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The CardGrade Chrome extension brings selected eBay, COMC, and TCGplayer card images into a review popup. Add a front image and, when available, the back; then use one CardGrade credit for a photo-based pre-screen with PSA, BGS, and CGC prediction estimates.
Free to install. A CardGrade sign-in and an available credit are required to submit a grade.
Public store version 1.0.8 · updated May 24, 2026 · listing reviewed .
Right-click selected image
It is a listing-photo pre-screening workflow, not an automatic grade attached to every card for sale. You choose the image evidence, review it in the popup, and decide whether to spend a credit. The result helps you inspect a listing before a bid, offer, or submission decision; it does not verify the seller, authenticate the physical card, or guarantee a professional grade.
eBay, COMC, and TCGplayer
Uses your available CardGrade balance
Add the back when the listing provides one
Photo quality and system load can affect timing
The public extension separates image selection from grading so you can confirm what the analysis will receive before a credit is used.
Install the public Chrome Web Store extension, then sign in with a CardGrade account that has an available grading credit.
Right-click the card front and choose “Grade with CardGrade (Front).” If the listing shows the back, use the separate “Back” action for that image.
The selected images load into the extension popup. A front image is required; the back is optional. Confirm the images before using one credit.
Review the photo-based result in the popup, revisit it in recent history, or open the full CardGrade report for closer inspection.
The public extension requests host access for eBay, COMC, and TCGplayer. It does not claim to grade every image on the wider web.
Start with a selected raw-card listing image, then add another listing image as the back when one is available.
Move a selected COMC card image into the extension review step without first saving the file to your computer.
Use an accessible listing image as photo evidence, then review it in the popup before submitting the analysis.
A marketplace redesign, blocked image URL, or inaccessible gallery image can interrupt the right-click import. In that case, the extension popup also supports manual image upload. Review the seller's original listing, description, return policy, and reputation separately from any CardGrade result.
The CardGrade privacy policy describes a narrow purpose for marketplace permissions: import the card image you explicitly choose for grading.
Read the Chrome extension privacy sectionThe chosen listing image or manually uploaded card photo is sent for grading.
A CardGrade API token is stored locally in Chrome so the extension can authenticate requests.
The public manifest is scoped to eBay, COMC, TCGplayer, and CardGrade domains.
Submitted results are associated with the signed-in CardGrade account for later review.
The extension brings selected card images from eBay, COMC, or TCGplayer into a CardGrade review popup. After confirming a required front image and an optional back image, a signed-in member can use one credit for a photo-based condition pre-screen. Results can include condition scores and PSA, BGS, and CGC prediction estimates.
CardGrade can pre-screen the visible condition shown in a selected eBay image, but it cannot inspect the physical card. Seller photos may hide defects through glare, blur, compression, cropping, or missing angles, so use the result as one research input rather than an official grade or purchase guarantee.
The public extension is configured for eBay, COMC, and TCGplayer listing pages. Marketplace changes or image-access restrictions can sometimes prevent a listing image from importing; the extension also provides a manual image-upload workflow.
The extension is free to install from the Chrome Web Store. Submitting a card analysis requires a CardGrade account and one available grading credit. Current account, credit, subscription, pack, and trial terms are shown on the CardGrade pricing page and can change independently of the store listing.
A front image is required by the current extension workflow, and the back image is optional. Add the back whenever the listing provides a clear image because the system cannot evaluate back-side evidence that is missing from the submission.
No. CardGrade returns independent photo-based prediction estimates for pre-screening. It is not affiliated with PSA, Beckett or BGS, or CGC, and it does not authenticate, physically inspect, encapsulate, or issue an official grade for the card.
A standard CardGrade photo pre-screen typically completes in about 60 seconds after submission. Image quality, network conditions, and system load can affect completion time, so this is a typical workflow time rather than a guarantee.
The extension uses the card images you explicitly select or upload for grading and stores its CardGrade account token locally in Chrome for sign-in. CardGrade’s privacy policy explains how selected images, account information, and grading history are processed and stored.
Verified
The Chrome Web Store currently serves public version 1.0.8, updated May 24, 2026. Store listing copy and CardGrade account terms can be updated on different schedules, so current CardGrade pricing and checkout terms control access to grading credits.
Used for: public install page, publisher, version 1.0.8, May 24, 2026 update date, marketplace scope, and store disclosures.
Used for: extension sign-in, selected-image handling, local token storage, and marketplace host access.
Used for: condition checks, prediction scope, typical timing, report contents, and photo-based limits.
Used for: current account, subscription, credit-pack, and grading-access terms.
CardGrade is independent of eBay, COMC, TCGplayer, PSA, Beckett/BGS, and CGC. Their names and trademarks belong to their respective owners.
Install the extension for marketplace-image pre-screening, or review the current credit options before you submit a grade.