Your card collection, catalogued and priced.
Scan a stack of cards, let AI read what is on them, price them against live market data, and export an eBay bulk-listing file - all from one dashboard.
English and German, in USD, EUR or GBP. Dark mode included.
Everything between a shoebox and a sold listing
Cardline is built around one idea: a card's identity belongs to a shared catalog, not to free text on your row. Everything else follows from that.
A shared card catalog
Cards come from a global catalog built from official checklists. You pick your card, you never type it - so no two collectors spell the same card two ways.
Scan and identify
Upload raw scans and vision AI reads the player, set, number and parallel, then matches them against the catalog before anything is saved.
Prices that scale
One lookup per card, parallel and grade - shared by every owner. The tenth owner of a card waits for nothing and costs nothing.
eBay bulk listings
Turn a selection into a ready-to-upload eBay bulk-listing CSV, with signed image links already in the right columns.
Collections and value
Group cards into collections, track cost basis against current value, and see it all in your own currency.
Bring what you already have
Import a SportsCardsPro collection export and each row is matched to the catalog automatically. Nothing is dropped, unsure rows are flagged.
One catalog. One price. Every owner.
Most collection apps look a price up per card, per user. That is the same request ten times for the same card, and it is why those lookups are rationed.
Cardline prices a catalog entry instead - once per card, parallel and grade - and every owner reads the same answer. Sources are official APIs: eBay Browse and SportsCardsPro, each optional and each off unless configured.
1x
price lookup per card, however many people own it
2
official price APIs, both optional
0
scrapers or headless browsers, by design
How it works
- 1
Add your cards
Search the catalog and say what you own, scan a stack and confirm what the AI read, or import a CSV you already have.
- 2
Get prices
Shared prices land on every linked card, in your display currency, with the sources and sample size shown so you can judge them.
- 3
Sell or keep track
Export an eBay listing file when you are selling, and watch cost basis against current value when you are not.
Start with the cards on your desk.
Create an account and add your first card in a minute.