now live

List graded slabs to eBay in seconds.

Scan a slab. Slabline reads the cert, pulls a live comp from eBay, and prepares the listing. You review and send. For solo flippers and LCS owners who measure margin — on eBay.ca or eBay.com.

14-day free trial PSA · CGC · BGS · TAG iOS · Android · Desktop
Scan the slab
OCR reads the cert, grade and subject from your photo.
Live eBay comps
Filtered to same grader and grade. Real-time, not cached.
Direct publish
Lists straight to your eBay account. No copy-paste.
Install anywhere
PWA — iOS, Android, desktop. Offline-capable.

Three steps. No retyping.

Slabline takes a slab from a photo to a live eBay listing — on eBay.ca or eBay.com. You review every price before it goes out, but the title, description, comps, shipping, and category are filled for you.

step 01

Scan the slab

PSA 10 cert · 8741… grade · 10 subj · charizard

Drop a photo, batch-upload a folder, or scan from your phone camera. OCR reads the cert, the grade, and the subject in one pass.

step 02

Live comp pricing

C$120 lowest live · same grader · same grade

Slabline pulls the lowest competing live listing on the eBay marketplace you sell on (.ca or .com), filtered to the same grader and grade. You see the comp, the seller's title, and how your price compares.

step 03

Listed on eBay

listed · C$120.00

Title built from the cert and your store presets. Description, category, item specifics, shipping policy — all filled. You hit confirm.

Built for sellers who measure margin.

If you're listing dozens of slabs a month, the math is simple: every minute of typing is margin you're handing back. Slabline takes that minute.

batch ingest

Drop a folder. Get a queue of listings.

Upload a batch of slab photos at once. Each one gets OCR'd and queued for review. You catch the outliers, accept the rest, and they all publish to eBay.

BATCH · 47 SLABSPROCESSING
SCANNED
37
PRICED
34
QUEUED
31
REVIEW
3
cert OCR

PSA · CGC · BGS · TAG labels

Cert number, grade, and subject are read from the slab label across the major graders. Confidence is shown alongside every field — anything below threshold is flagged for you to confirm before publish.

live comps

Priced against the market

Slabline pulls the lowest active listing on your eBay marketplace (.ca or .com) for the same card, filtered to the same grader and grade. You see the comp, the URL, and how far your price sits from it.

bulk ops · pro

Bulk reprice + bulk end

Select multiple listings. Reprice by percentage or fixed amount, or end them all in one click. Useful when the market shifts on a whole set.

install anywhere

PWA · works on every device

Install to home screen on iOS, Android, or desktop. Same login, same data, on every device you've installed it on.

One slab is one listing. Pay for what you list.

Start with a 14-day free trial. After that, pay monthly with no per-listing fees. Two plans, no gotchas.

Starter
C$0/mo
For trying it out and casual flipping. Free, no expiration.
  • Up to 20 listings / month
  • OCR + cert reading
  • Direct eBay listing publish
  • Live comp pricing
  • Bulk reprice + bulk end
  • Insights dashboard
  • CSV export
Get started

Add to home screen.
That's the install.

Slabline is a PWA — no app store, no waiting on review. Open slabline.app on the device you want to use it on, and tap install. It works the same as any native app.

iOS
iPhone & iPad
Safari → Share → Add to Home Screen
AND
Android
Chrome → menu → Install app
DESK
macOS, Windows, Linux
Chrome / Edge → click install icon in URL bar
Open slabline.app →
9:41

Common questions.

More in the docs →

Why a PWA and not an app store app?
No 30% Apple tax, no review delays, no install friction. Slabline ships an update the moment we push it. The app behaves identically to a native app on the home screen.
Which graders do you support?
PSA, CGC, BGS, and TAG — Slabline reads the cert, grade, and subject from each grader's label. PSA reads with the highest confidence; CGC, BGS, and TAG read with slightly reduced confidence. Anything else falls back to manual entry — you can still publish, you just type the cert yourself.
Do you list raw cards too?
No. Slabline is graded-only by design. Raw cards have radically different photo, condition, and pricing logic — we'd rather do graded perfectly than both poorly.
How does the comp pricing actually work?
For Pro, every active listing in your account is matched against the lowest live competing listing on your eBay marketplace (.ca or .com), filtered to the same grader and grade. You see the comp's price, title, seller, and a one-click link to recent sold listings on eBay for that card.
What about returns and chargebacks?
Returns go through eBay as normal — Slabline doesn't get in the way of eBay's existing return flow.
Can I cancel anytime?
Yes. Cancel from settings — Stripe handles the billing, and your subscription stays active until the end of the period you've already paid for.