Install from the Chrome Web Store ↗
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Australia has 2 main problems - gambling ads and FUCKING MARKETPLACES. this extension solves the latter.
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somehow, palpatine returned, then Big W became a marketplace. So did Bunnings. And Woolworths. And Kmart, JB Hi-Fi, Harvey Norman, Myer, and fuck Kogan for starting all this shit probably. And now Jaycar's got a fucking marketplace too because the universe hates us. basically we should have never shot that monkey
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This is a Chrome/Edge extension that hides or labels third-party marketplace items on Australian retail websites automatically, so you're not sitting there clicking around like an idiot before you hand over your credit card.
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Remove mode hides marketplace items outright, or auto-clicks the site's own filter where one exists. Highlight mode marks them with a purple outline — still there, clearly flagged.
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Detail page warnings on product pages for marketplace sellers. theres no backend or account and no data collected. Just less marketplace bullshittery when you just want to see if bunnings has that thing you don't need or if you need to hit up aliexpress.
| Site | How it works |
|---|---|
| Big W | Native toggle button + card-level fallback |
| Woolworths (Everyday Market) | Auto-clicks the "Hide Everyday Market" chip |
| Bunnings | data-locator badge on product cards |
| Kmart | kosmos-ds-Box[role=status] badge |
| JB Hi-Fi | URL param ?excludeMarketplace=true on collections, card badge on search |
| Harvey Norman (Customer Direct) | ONLINE ONLY flag on listing cards, detail page warning |
| Myer (Myer Market) | Detail page warning (listing pages don't expose seller identity) |
| Kogan | Detail page warning with own-seller suppression |
| THE ICONIC | data-track-affiliation / .sponsored-message on listing cards |
| Jaycar | URL param ?excludeEa=1 (Extended Assortment) on search + category pages |
Myer is migrating to a new marketplace platform in 2026. Selectors may need updating after that.
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Clone the repo
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Go to
chrome://extensions, enable Developer Mode, click Load unpacked, point it at the repo folder -
Go to
edge://extensionsif you're on Edge, same deal -
Click the MarkOFF icon in your toolbar. Pick a mode. Done.
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...profit
Each supported site has an entry in sites.js with CSS selectors for its marketplace badge. Retailers like to think their frontend is unique. It's not — it's just patterns. When they update it anyway (and they will), this is the only file that needs updating.
dev/devtools-probe.js is a self-contained script you can paste into any retailer's console to help discover new selectors. Run it on a search/browse page that contains marketplace items.
dev/selector-notes.md has inspection history and notes per site.
sites.js single source of truth — all retailer configs
content/filter.js injected into retailer pages, does the actual work
popup/ extension popup (filter settings, help, about)
background.js service worker, mostly just handles install defaults
dev/ devtools probe, icon generator, store listing copy
icons/ icon assets
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Retailers update their shit constantly. If filtering breaks on a site, it's a selector — find the new one with the devtools probe, update
sites.js, setinspected: true, done. That's basically programming. -
The extension reloads itself programmatically during development via
window.postMessage({ type: 'MARKOFF_RELOAD' }, '*')from any injected page. Saves having to visitchrome://extensionsevery five minutes. -
Harvey Norman uses "ONLINE ONLY" as the listing-page signal for Customer Direct items. Real transparent of them.
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THE ICONIC hides seller identity on listing pages entirely. The
data-track-affiliationbadge targets sponsored/affiliate-injected listings specifically. About 42% of their GMV is third-party, so statistically you're probably fine. -
Woolworths' "Hide Everyday Market" button filters at the server level by adding
isHideEverydayMarketProducts=trueto the URL. This means it also applies to pagination and any sharing of the filtered URL, which is a nice side effect.
Open an issue or PR. If a retailer has changed their shit and filtering is broken, the most useful thing is the selector you found with the devtools probe and which page you were on.