SlabScore — Card Grading Calculator & ROI Analyzer

Tracking since Apr 17, 2026.

Changelog

• May 10, 2026
  description

  Stop losing money on cards that aren't worth grading. SlabScore instantly tells you the expected ROI of grading any card you find on eBay, TCGPlayer, or PriceCharting — before you spend a dime on submission fees. Visit any card listing and get an instant score from 0-100 that factors in profit potential, market depth, grade premium, and downside protection.
  
  HOW IT WORKS
  Browse cards on supported marketplaces and SlabScore automatically extracts the card name, price, and variant. The extension scores each card and displays a badge directly on the page with a clear recommendation: Strong Grade, Grade, Consider, or Skip.
  
  WHAT YOU GET
  Score badges injected directly into search results so you can scan dozens of cards at a glance
  One-click analysis on any eBay, TCGPlayer, or PriceCharting product page
  Grade-by-grade price breakdown showing profit and ROI from PSA 7 through PSA 10
  Side-by-side fee comparison across five grading companies: PSA, TAG, CGC, BGS, and ACE
  Suggested grading tier based on card value and expected return
  Personalized cost settings — enter your actual shipping, insurance, and declared values
  Analysis history that tracks cards you've viewed in your browsing session
  Right-click context menu to manually analyze any card or selected text
  
  SAVE TO YOUR PORTFOLIO
  Sign in with your SlabScore account to save cards directly to your portfolio with one click. Cards sync instantly to the SlabScore web app at slabscore.io, where you can track your full collection, manage grading batches, run submission simulations, and monitor your grading ROI over time.
  
  SUPPORTED MARKETPLACES
  eBay (.com, .co.uk, .ca, .com.au)
  TCGPlayer
  PriceCharting
  
  SUPPORTED CARD TYPES
  Pokemon, Yu-Gi-Oh, Magic: The Gathering, Baseball, Basketball, Football, Hockey, soccer, and other sports cards and trading cards.
  
  FREE AND PRO
  The extension is completely free for basic analysis — no account required. Create a free SlabScore account to save cards and sync your portfolio. Upgrade to Pro or Unlimited at slabscore.io for higher limits, cloud sync, and advanced tools like the Grading Optimizer and Submission Simulator.
  Whether you're submitting to PSA, CGC, BGS, TAG, or ACE, SlabScore helps you pick the right cards and the right grading company every time.
  
  SlabScore is built by collectors, for collectors. Stop guessing which cards are worth grading and start making data-driven decisions.
  
  Learn more at slabscore.io

  ## Score any card in seconds.
  
  SlabScore is the free Chrome extension that tells you whether a raw card is worth grading — instantly, on every supported marketplace. Stop spending submission fees on cards that won't earn it back.
  
  A floating pill appears in the bottom-right of the page with the SlabScore (0-100) and a clear recommendation: STRONG GRADE / GRADE / CONSIDER / MARGINAL / SKIP. Click it for the full breakdown — profit math by grade, market depth, alternatives, and one-click save to your slabscore.io portfolio.
  
  ## What you get
  
  ✓ Instant grading-ROI math — raw price → PSA 8 / 9 / 10 profit projections accounting for grading cost
  ✓ 4-component score — Profit Potential, Market Depth, Grade Premium, Downside Protection (Pro)
  ✓ Multi-grader awareness — PSA, CGC, BGS, TAG, ACE pricing with a "best fit" tier suggestion per card
  ✓ Smart matching — variants, alternatives, foil-sibling exclusion, and already-graded slab detection (auto-pivots to spread-vs-PSA-10 mode)
  ✓ Listing-aware adjustments — flags Lightly/Moderately/Heavily Played listings; uses eBay's own grading-upsell price when offered
  ✓ Search-results ranking sidebar — when PriceCharting redirects to a search page, the extension scores the top 5 candidates so you can pick the right one
  ✓ Match-confidence pill — High/Medium/Low chip tells you how reliable the URL match is
  ✓ One-click save to portfolio — separate buttons for Raw and Watchlist destinations
  ✓ Quick lookups — direct deep-links to PSA Pop Report + 130point comparable sales
  ✓ History tab — review every card you scanned this session, with score + recommendation
  ✓ Privacy-first — no analytics on which cards you view; only anonymous install + daily usage counts
  
  ## Supported marketplaces
  
  - eBay (US, UK, CA, AU)
  - TCGPlayer
  - PriceCharting (product pages + search-results pages)
  - Cardmarket (EU)
  - 130point (sold-comp database)
  
  ## Supported card types
  
  Pokemon, Yu-Gi-Oh, Magic: The Gathering, and sports (baseball, basketball, football, hockey, soccer). Other trading-card games are scored when PriceCharting has them in its catalog.
  
  ## Free vs Pro
  
  The extension is free with anonymous use up to 60 analyses/hour. Sign in for higher limits (free tier: 100/hr; Pro: 300/hr; Unlimited: unlimited).
  
  Pro ($9.99/mo) unlocks the full 4-component score breakdown inside the badge, 100-card portfolio, and cloud sync between devices. Free is plenty for casual collectors; Pro is for active grading.
  
  The web app at slabscore.io adds the heavier tools — Plan Submission, batch builder, multi-grader fee comparison, submission-date predictor, leaderboard. The extension is the in-the-flow scoring layer; the web app is where you act on it.
  
  [Pricing →](https://slabscore.io/pricing) · [Privacy →](https://slabscore.io/privacy) · [Support →](https://slabscore.io/support) · [Discord →](https://discord.gg/FA3ZMRwHfA)
  
  ## Available languages
  
  English, German, Spanish, French.
  
  ## Permissions
  
  - contextMenus — adds "Analyze with SlabScore" right-click menu
  - storage — caches analyses and your preferences locally
  - activeTab + tabs — reads the current tab's URL when you context-click; opens auth/welcome tabs
  - alarms — schedules a daily usage-stats heartbeat
  - host_permissions: slabscore.io — API calls (analyze, save, session)
  
  The extension does NOT track which cards you view — content-script extraction runs entirely on-device. Only an opaque install ID and daily aggregate counts are sent home. Full policy at slabscore.io/privacy.
  
  ## Built by collectors, for collectors
  
  SlabScore is independently built and not affiliated with PSA, CGC, BGS, TAG, ACE, eBay, TCGPlayer, PriceCharting, Cardmarket, or 130point. All trademarks belong to their respective owners.
  
  Stop guessing which cards are worth grading. Start making data-driven decisions.
  
  Learn more at slabscore.io.

• May 10, 2026
  short_description

  Free card grading ROI calculator for PSA, CGC, BGS, TAG, ACE. Instant profit analysis on eBay & PriceCharting.

  Score any card 0-100 on grading ROI. PSA, CGC, BGS, TAG, ACE pricing on eBay, TCGPlayer, PriceCharting, Cardmarket + 130point.

• May 10, 2026
  permissions

  contextMenus, storage, activeTab, tabs

  contextMenus, storage, activeTab, tabs, alarms

• Apr 22, 2026
  description

  SlabScore analyzes trading cards on eBay, TCGPlayer, and PriceCharting to tell you whether a card is worth sending to a professional grading company. Visit any card listing and get an instant score from 0-100 that factors in profit potential, market depth, grade premium, and downside protection.
  
  HOW IT WORKS
  Browse cards on supported marketplaces and SlabScore automatically extracts the card name, price, and variant. The extension scores each card and displays a badge directly on the page with a clear recommendation: Strong Grade, Grade, Consider, or Skip.
  
  WHAT YOU GET
  One-click analysis on any eBay, TCGPlayer, or PriceCharting product page
  Grade-by-grade price breakdown showing profit and ROI from PSA 7 through PSA 10
  Side-by-side fee comparison across five grading companies: PSA, TAG, CGC, BGS, and ACE
  Suggested grading tier based on card value and expected return
  Score badges injected directly into search results so you can scan dozens of cards at a glance
  Analysis history that tracks cards you've viewed in your browsing session
  Right-click context menu to manually analyze any card or selected text
  
  SAVE TO YOUR PORTFOLIO
  Sign in with your SlabScore account to save cards directly to your portfolio with one click. Cards sync instantly to the SlabScore web app at slabscore.io, where you can track your full collection, manage grading batches, run submission simulations, and monitor your grading ROI over time.
  
  SUPPORTED MARKETPLACES
  eBay (.com, .co.uk, .ca, .com.au)
  TCGPlayer
  PriceCharting
  
  SUPPORTED CARD TYPES
  Pokemon, Yu-Gi-Oh, Magic: The Gathering, Baseball, Basketball, Football, Hockey, and more.
  
  FREE AND PRO
  Use the extension without an account for basic analysis. Sign in with a free SlabScore account to save cards and access your portfolio. Upgrade to Pro or Unlimited at slabscore.io for higher analysis limits, cloud sync across devices, and advanced features like the Grading Optimizer and Submission Simulator.
  
  SlabScore is built by collectors, for collectors. Stop guessing which cards are worth grading and start making data-driven decisions.
  
  Learn more at slabscore.io

  Stop losing money on cards that aren't worth grading. SlabScore instantly tells you the expected ROI of grading any card you find on eBay, TCGPlayer, or PriceCharting — before you spend a dime on submission fees. Visit any card listing and get an instant score from 0-100 that factors in profit potential, market depth, grade premium, and downside protection.
  
  HOW IT WORKS
  Browse cards on supported marketplaces and SlabScore automatically extracts the card name, price, and variant. The extension scores each card and displays a badge directly on the page with a clear recommendation: Strong Grade, Grade, Consider, or Skip.
  
  WHAT YOU GET
  Score badges injected directly into search results so you can scan dozens of cards at a glance
  One-click analysis on any eBay, TCGPlayer, or PriceCharting product page
  Grade-by-grade price breakdown showing profit and ROI from PSA 7 through PSA 10
  Side-by-side fee comparison across five grading companies: PSA, TAG, CGC, BGS, and ACE
  Suggested grading tier based on card value and expected return
  Personalized cost settings — enter your actual shipping, insurance, and declared values
  Analysis history that tracks cards you've viewed in your browsing session
  Right-click context menu to manually analyze any card or selected text
  
  SAVE TO YOUR PORTFOLIO
  Sign in with your SlabScore account to save cards directly to your portfolio with one click. Cards sync instantly to the SlabScore web app at slabscore.io, where you can track your full collection, manage grading batches, run submission simulations, and monitor your grading ROI over time.
  
  SUPPORTED MARKETPLACES
  eBay (.com, .co.uk, .ca, .com.au)
  TCGPlayer
  PriceCharting
  
  SUPPORTED CARD TYPES
  Pokemon, Yu-Gi-Oh, Magic: The Gathering, Baseball, Basketball, Football, Hockey, soccer, and other sports cards and trading cards.
  
  FREE AND PRO
  The extension is completely free for basic analysis — no account required. Create a free SlabScore account to save cards and sync your portfolio. Upgrade to Pro or Unlimited at slabscore.io for higher limits, cloud sync, and advanced tools like the Grading Optimizer and Submission Simulator.
  Whether you're submitting to PSA, CGC, BGS, TAG, or ACE, SlabScore helps you pick the right cards and the right grading company every time.
  
  SlabScore is built by collectors, for collectors. Stop guessing which cards are worth grading and start making data-driven decisions.
  
  Learn more at slabscore.io

• Apr 22, 2026
  short_description

  Instantly see grading ROI for any card on eBay, TCGPlayer, or PriceCharting. Save to your portfolio with one click.

  Free card grading ROI calculator for PSA, CGC, BGS, TAG, ACE. Instant profit analysis on eBay & PriceCharting.

• Apr 22, 2026
  name

  SlabScore - Card Grading ROI Analyzer

  SlabScore — Card Grading Calculator & ROI Analyzer

• Apr 22, 2026
  category

  productivity/tools

  lifestyle/shopping

Permissions & access

Permissions

contextMenusstorageactiveTabtabsalarms

Host access

https://slabscore.io/*

Screenshots

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