A browser extension that interrupts checkout

You don't have a spending problem. You have a 3-second problem.

Cart Mirror quietly counts how often you circle back to a cart — then, right before you pay, it shows you the number and asks for one breath. No budgets. No lectures. Just a mirror.

Join a running list of people who close more tabs than they open.

live demo — go on, click it
definitely-not-a-real-store.com/checkout
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Retro Runner '92

Size 42 · Cloud White · Qty 1
€129.00
🔥 Only 2 left — 14 people viewing
Free returns · 30-day guarantee · etc. etc.

Blockers ban the store. Mirrors show you the loop.

Site blockers treat you like a child and get uninstalled in a weak moment. Cart Mirror never says no — it just makes sure the decision is yours instead of the checkout button's.

It watches

Counts the circling

Cart opens, product-page revisits, abandoned checkouts — tallied silently in the background, on your device. You'll never notice it. Until it matters.

It interrupts

Only at the button

Browse all you want. The pause appears at one place only: the moment your cursor commits to "Buy now." One breath. Four seconds. That's the whole intervention.

It mirrors

Your number, not our opinion

"6 visits today. 3rd checkout attempt. €340 paused this month." No shame, no advice. Compulsion mostly can't survive being counted out loud.

Every Sunday: a receipt for the money that stayed yours.

Shops send you a receipt when you spend. Cart Mirror sends you one when you don't. It's the most satisfying email you'll get all week — and the only stat that matters when you're deciding whether this thing is worth keeping.

CART MIRROR
weekly recap · mon 22 – sun 28

carts opened23
checkout attempts9
breaths taken9
purchases made2

NOT SPENT€214.60

*** you are not a conversion rate ***
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Everything stays on your device. Cart Mirror never sees what you buy, where you shop, or what's in your cart. The counting happens locally in your browser; we couldn't sell your data even if we were the kind of people who would. An extension that watches your shopping has exactly one acceptable privacy policy, and this is it.