SlabPeek — Card comps & market signals while you browse icon

SlabPeek — Card comps & market signals while you browse

by CNVRSTN LABS · slabpeek.com · Shopping
Established publisherManifest V3 in_app
View in Chrome Web Store Data as of 15 Oct 2026

Hover card listings on eBay and Fanatics Collect to see market value, recent sales, grade values, and market signals.

Users
28
+2 in 30 days
Rating
5.0 / 5
unchanged in 30 days
Ratings
6
0 in 30 days
Store rank
#132K
#110K among extensions
Version
1.13.1
updated 4 Sep 2026

Users

monthly, 4 months
01632Jun 2026Sep 2026Oct 2026
Latest, 15 Oct 2026: 28 usersMove the mouse over the chart for any month

Ratings count

monthly, 4 months
036Jun 2026Sep 2026Oct 2026
Latest, 15 Oct 2026: 6 ratingsMove the mouse over the chart for any month

The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.

About SlabPeek — Card comps & market signals while you browse

SlabPeek gives card collectors instant market context directly on supported marketplace listings. Instead of opening multiple tabs to research recent sales, grade values, pricing trends, and whether a listing is priced well, SlabPeek brings that information directly beside the card you’re viewing. Open a supported individual card listing on eBay or Fanatics Collect, then hover the primary card image or listing title. SlabPeek identifies the card from the listing details and displays a clean market-intelligence panel without interrupting your browsing. WHAT SLABPEEK SHOWS • Market Value — see the current market level SlabPeek finds for the identified card and grade • Latest Exact Sales — review recent trusted sales for the same card and grade • Value by Grade — compare available values across PSA 10, PSA 9, Raw, and other supported grades • Deal Score — on fixed-price listings, see how the asking price compares with market value • Bid Position — on auctions, see where the current bid sits relative to market value without treating the auction as a completed sale • Market Activity — understand how frequently the card has been selling • Price Trend / Recent Pricing — see recent grade-specific price movement when enough reliable history exists • Copy Image / Download PNG — share a snapshot of the SlabPeek market panel with other collectors BUILT FOR • Sports card collectors • TCG collectors • eBay card buyers • Fanatics Collect buyers and bidders • Card flippers • Slab and raw-card buyers • Collectors who want faster market research before making a purchase HOW IT WORKS SlabPeek reads the relevant title and listing details from the supported marketplace page you are viewing to identify the card and retrieve available market data. Hovering either the card image or listing title opens the same SlabPeek panel for that listing. SlabPeek is designed to help answer questions like: • What has this exact card been selling for? • What is it worth in this grade? • Is the asking price above or below market? • Where does the current auction bid sit relative to market? • How active is the market for this card? • Are recent prices moving up, down, or staying relatively stable? BETTER LIMITED DATA THAN BAD DATA Not every card has enough reliable recent sales to support every market signal. SlabPeek only shows card-specific market information when it can confidently identify the card and when appropriate market data is available. When the market is thin, SlabPeek may show limited information rather than fill the panel with loosely related comparisons or unsupported conclusions. CURRENT MARKETPLACE SUPPORT SlabPeek currently supports individual card listing pages on: • eBay • Fanatics Collect SlabPeek does not currently run on marketplace search-result pages. ACCOUNT & ACCESS SlabPeek requires a SlabPeek account and an active subscription or trial to access market-data features. Users may need to sign in to their SlabPeek account before market information appears. SlabPeek is designed to stay out of the way until you need it — no complicated dashboards, no spreadsheets, and no manually copying listing titles into a separate price guide. Open the listing. Hover the card. Know the market. DISCLAIMER SlabPeek is an independent tool and is not affiliated with, endorsed by, sponsored by, or partnered with eBay, Fanatics Collect, PSA, or any marketplace, grading company, or data provider referenced within the product. Market values, pricing estimates, Deal Scores, Bid Positions, sales data, and other market information are provided for informational purposes only. Availability and accuracy depend on the card being correctly identified and reliable market data being available. SlabPeek does not guarantee future sale prices, resale value, auction outcomes, or investment performance and does not provide financial advice.

Growth

WindowUsersChangeRatingsRating
7 days+2+7.7%00.00
30 days+2+7.7%00.00

Chrome Web Store search rankings

Where SlabPeek — Card comps & market signals while you browse appears when people search the store, with the 30 day change
Search phrasePosition30 days
card#28+15

Version history

10 versions recorded
1.13.14 Sep 2026
1.13.02 Sep 2026
1.12.01 Sep 2026
1.11.021 Aug 2026
1.10.216 Aug 2026
1.2.66 Jul 2026
1.2.23 Jul 2026
1.1.81 Jul 2026

Details

Category
Shopping
First seen
9 Jun 2026
Size
133 KB
Languages
en
Pricing
in_app
Privacy policy
slabpeek.com
Support
slabpeek.com
Extension ID
pgcocoddclfkkccmnemjafgknhaeaakd

Permissions and risk

Moderate riskimpact 3, likelihood 2
Permissions
storage
Site access
https://*.ebay.com/*https://*.ebay.ca/*https://*.ebay.co.uk/*https://*.ebay.com.au/*https://*.ebay.ie/*https://*.ebay.de/*https://*.ebay.at/*https://*.ebay.ch/*https://*.ebay.fr/*https://*.ebay.be/*and 9 more

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