Free · no account to start · up to 25 cards on the free plan
How it works
- 1
Export a CSV
From Card Ladder, Market Movers, or Mascot — export your collection to a CSV file. It’s your data.
- 2
Import it here
Upload or paste the CSV. Slabline detects the format, resolves every graded card live, and values cert-less cards by name.
- 3
Get your Score
See your 0–1000 protection Score, gem rate, and insurance schedule instantly — across PSA, BGS, SGC & CGC.
What Slabline adds that a price tracker doesn’t
A 0–1000 Slabline Score
A 0–1000 protection score for your whole collection — concentration, liquidity, and grade exposure in one number. No price tracker has it.
Gem rate on every card
Universal gem rate and population across PSA, BGS, SGC & CGC — the number that tells you whether a raw copy is worth grading.
Broker-ready insurance
A schedule you can hand an insurer, a claim pack, and value-drift alerts when you’re underinsured. The layer pricing tools don’t touch.
Exporting from your current tool
Open your collection and export it to CSV.
Cert numbers, graders, and your Investment (cost basis) come across automatically.
Export your collection to CSV.
Cards come in by name — Slabline values each one by identity across all four graders.
Export your inventory to CSV.
Cert numbers, grades, and Unit Cost are read directly from the file.
Any CSV with a grader + cert column works.
Or just paste rows like “PSA, 74829163”. Slabline detects the columns for you.
Slabline is independent and not affiliated with Card Ladder, Market Movers, or Mascot. Names are used only to describe the exports Slabline reads. It never connects to your account on those services — it reads only the CSV file you upload.
Common questions
Can I import my Card Ladder collection?
Yes — export a CSV from Card Ladder and upload it. Cert numbers, graders, and your cost basis come across automatically, and Slabline layers on a Score, gem rate, and insurance schedule.
Does it work with a Market Movers export?
Yes. Market Movers lists cards by name rather than cert, so Slabline values each one by identity across PSA, BGS, SGC & CGC.
Is this a Card Ladder or Market Movers alternative?
It’s complementary. Those tools tell you what a card is worth; Slabline adds a protection Score, gem rate, a Pre-Grade “worth grading” verdict, and insurance. Plenty of collectors use both.
Is my data safe?
Importing is private to your collection and needs no account to start. Slabline reads only the file you upload — it doesn’t connect to your account on any other service.
