According to AlphaMoat, as of 2026-09, the Chrome extension CardGrade has 155 users (+18.3% MoM), rated 4.9 (7 reviews) — ranked #3,565 of 9,324 AI browser extensions, and #46 of 123 in Other Industries.
What is CardGrade
Grade trading cards instantly with AI. Free 3-day trial. PSA, BGS, and CGC grade predictions without leaving the page. Grade any trading card without leaving the page.
CardGrade brings AI-powered card grading to eBay, COMC, and TCGPlayer. Right-click any card image and get a PSA, BGS, or CGC grade prediction in seconds — no scanning hardware, no submission fees, no waiting weeks.
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- Right-click any card image on eBay, COMC, or TCGPlayer and pick "Grade with CardGrade"
- Upload your own card photos straight from the popup (front + back)
- Get a full breakdown: overall grade + centering, corners, edges, and surface sub-scores
- See PSA, BGS, and CGC predictions side-by-side so you know which grader to send to
- Get a market value estimate (low / high range) with the analysis
- View your full grading history in the popup and jump to detailed reports on cardgrade.io
- Works on every eBay listing, COMC product page, and TCGPlayer card
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- Collectors deciding whether to pay $20–$60 for a real PSA / BGS / CGC submission
- Resellers triaging eBay raw-card listings before they buy
- Breakers & store owners pricing inventory in bulk
- Anyone who's ever stared at a card and wondered "is this a 9 or a 10?"
Show the rest of the store description▾
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- Free 3-day trial. Card on file, no charge for 3 days.
- You get credits unlocked across the 3 days so you can really kick the tires.
- Cancel any time before day 4 and you pay nothing.
- On day 4, your chosen plan activates automatically.
You sign up on cardgrade.io (Chrome extensions can't take payment directly), then come back here and sign in with the same email. Takes about 30 seconds.
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After the trial, pick the tier that fits your volume:
- Hobby — $4.99/mo or $47.99/yr — 10 credits/month
- Starter — $9.99/mo or $95.99/yr — 25 credits/month
- Pro — $24.99/mo or $239.99/yr — 80 credits/month (most popular for resellers)
- Business — $74.99/mo or $719.99/yr — 300 credits/month
Need more? Credit packs are available anytime in your dashboard and never expire. Cancel or change tiers from the billing portal in one click.
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1. Sign up at cardgrade.io and start your free 3-day trial. 2. Install the extension and sign in with the same email. 3. Right-click any card on eBay / COMC / TCGPlayer, or upload your own photos. 4. CardGrade's AI inspects centering, corners, edges, and surface. 5. You get a grade prediction in seconds, plus market value range and grader recommendation. 6. Send the high-confidence cards in to PSA / BGS / CGC. Skip the rest.
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CardGrade only reads the card image you explicitly choose. We don't track your browsing, build a behavioral profile, or sell your data. Card images are processed on our servers for grading and stored in your private history.
Host permissions are limited to eBay, COMC, TCGPlayer, and cardgrade.io — the extension doesn't run on any other site.
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Questions, bug reports, or feature requests: [email protected] Web app: https://cardgrade.io
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Data month: 2026-09 · User counts and ratings come from public Chrome Web Store data, aggregated monthly. See methodology.