If you sell into Australia or New Zealand, the marketplace map you learned three years ago is out of date. Two of the channels sellers used to list on by default no longer exist, the remaining ones have quietly diverged on image specs, and a large slice of the market now runs on the same underlying platform with the same quirks.
This guide covers what the live channels actually require in 2026, where the specs disagree, and how to build one master image set that satisfies all of them.
What changed: Catch and MyDeal are gone
Two closures reshaped the Australian marketplace landscape, and plenty of seller guides still have not caught up.
Catch.com.au ceased operations on 30 April 2025. Wesfarmers wound the business down after it posted a $96 million loss on revenue that fell 36 per cent to $227 million, citing competition from Amazon, Kogan, Temu and Shein. Its fulfilment centres were absorbed into Kmart Group.
MyDeal closed its customer website on 30 September 2025. Woolworths Group took a $90-100 million cash cost to shut it, and consolidated its marketplace ambitions into two retail-branded channels instead: BIG W Market and Everyday Market on woolworths.com.au. Woolworths kept the MyDeal technology and, importantly, the seller relationships, and migrated them across.
The practical lesson for image work: the older 1,320 x 1,080 px maximum that Catch and Kogan shared is no longer the ceiling you should design around. It was always an odd, restrictive spec, and with Catch gone there is one less reason to cap your master files that low.
The live AU and NZ channels in 2026
Amazon leads the Australian sector with around 8.8 million active shoppers, roughly 160,000 active sellers, and total estimated sales tracking toward AU$10 billion in 2026. It now reaches about 60 per cent of Australian shoppers. eBay AU remains a deep, established channel. Kogan is the largest surviving independent local marketplace. Then there is a cluster of retailer-branded marketplaces, and in New Zealand, Trade Me still dominates.
Specs at a glance
| Channel | Minimum | Recommended | Max file size | Images per listing |
|---|---|---|---|---|
| Amazon AU | 1,000 px longest side | 2,000-3,000 px longest side | 10 MB | Up to 9 (7 typically display) |
| eBay AU | 500 px longest side | 1,600 x 1,600 px | 12 MB | Up to 24 |
| Kogan | Product on white required | 1,000 x 1,000 px (max 1,320 x 1,080) | Not published | Up to 8 |
| Trade Me (NZ) | 500 px longest side | 1,600 px+ longest side | 5 MB | Up to 20 |
| Mirakl retail marketplaces | Varies by operator | 1,600-2,000 px square | Varies | Varies |
Amazon AU: the strictest, and the one that sets your ceiling
Amazon Australia runs the same image standards as Amazon's other marketplaces. The main image must be a real photograph of the product on a pure white background at RGB 255, 255, 255, with the product filling at least 85 per cent of the frame. No promotional text, no watermarks, no logos, no borders, no accessories that are not in the box.
The zoom threshold is the number that matters commercially. Below 1,000 px on the longest side you lose zoom entirely. The practical sweet spot sits between 2,000 and 3,000 px on the longest side, which gives buyers genuinely useful magnification without pushing files near the 10 MB limit.
Because Amazon is the strictest channel and wants the largest files, shoot and archive at Amazon's standard. Everything else in Australasia can be derived downwards from it.
eBay AU: generous limits, punishing thumbnails
eBay allows 500 px on the longest side as a bare minimum, but that minimum is a trap. Zoom only activates at 1,600 px or larger on the longest side, and 1,600 x 1,600 px is the size to target. You get up to 24 images per listing at up to 12 MB each, in JPEG, PNG, TIFF, BMP or non-animated GIF.
eBay prohibits watermarks, text overlays, promotional messages and contact information on listing photos. Sellers migrating old Catch or MyDeal assets across should check for exactly this, since some legacy retailer-supplied images carried badges and stamps that eBay will not accept.
Kogan: the tight one
Kogan sits at the opposite end. It suggests 1,000 x 1,000 px but caps images at a maximum width of 1,320 px and a maximum height of 1,080 px. That is unusually small by 2026 standards, and it means your Amazon-grade master file will be rejected if you push it across unchanged.
Two other Kogan specifics catch people out. At least one image must show the product centred on a white background, and no promotional text or marketing messages are permitted on any image. Kogan also ingests images by publicly readable URL only, starting with http:// or https:// and resolving to a qualified domain name. If your image host sits behind a password, a firewall or a signed-URL scheme that expires, the import will fail even though the files themselves are perfect.
The Mirakl cluster: Bunnings, Myer, BIG W and Everyday Market
A large share of Australia's retailer-branded marketplaces run on Mirakl: Bunnings MarketLink, Myer Market, and Woolworths' BIG W Market and Everyday Market. Myer completed its move to Mirakl in the first half of 2026 and added more than 25,000 products off the back of it. Catch Group was a Mirakl customer too.
These operators do not publish their image specifications openly the way Amazon and eBay do. The specs live in the onboarding pack and the seller portal, and they differ per operator and often per category. Do not assume one Mirakl marketplace's rules apply to another.
What is consistent across Mirakl-run channels is the mechanism. Images are usually pulled by URL or pushed via a product feed rather than uploaded one at a time, validation happens asynchronously at import, and a failed image tends to fail the whole offer silently rather than throwing an obvious error. Build for that: host images at stable, permanent, publicly reachable URLs, and check the import report rather than assuming success.
Trade Me: New Zealand's own set of rules
Trade Me requires photos to be at least 500 px on the longest side for general marketplace items, under 5 MB, with up to 20 photos per listing. There is no maximum pixel dimension, so around 1,600 px on the longest side is a sensible target: plenty of detail, comfortably inside the file-size limit.
Trade Me's watermark policy is more permissive than Amazon's or eBay's, but it is specific. Small watermarks for ownership or attribution only are allowed at up to 5 per cent of the image area and at least 50 per cent transparency. Anything larger or more opaque breaches the policy, as does any logo, artwork, photo border, or text conveying a marketing message such as low stock availability. You must also own the images or have the rights holder's permission, and listings are expected to show genuine flaws or defects clearly.
That last point is worth taking seriously. Trade Me's culture leans closer to honest condition reporting than to catalogue polish, and hiding a defect is a faster route to a dispute there than almost anywhere else.
One master set, five outputs
The efficient approach is a single master capture per product, then derived exports per channel. Shoot on white, square, product filling roughly 85 per cent of the frame, at 3,000 x 3,000 px in sRGB. From that one file:
- Amazon AU: 2,000 x 2,000 px or larger, JPEG, under 10 MB
- eBay AU: 1,600 x 1,600 px, JPEG, under 12 MB
- Kogan: 1,000 x 1,000 px, JPEG, within the 1,320 x 1,080 px cap
- Trade Me: 1,600 px longest side, JPEG, under 5 MB
- Mirakl channels: 1,600 x 1,600 px as a safe default, then adjust to the operator's pack
Resizing five variants by hand for every SKU is exactly the kind of work that quietly eats a day a week. A batch resizer such as PixelPrep lets you drop the master files in once and export every marketplace size in a single pass, which matters most when a channel changes its spec and you need to regenerate a whole catalogue.
Common failure points in this region
Reusing an old Catch or MyDeal image set unchanged
Those sets were built to a 1,320 x 1,080 px ceiling and often carried retailer badges. Both will cause problems on Amazon and eBay. Regenerate from masters rather than migrating the derived files.
Assuming NZ and AU can share one file
They mostly can, but Trade Me's 5 MB limit is tighter than eBay's 12 MB and Amazon's 10 MB. A 3,000 px JPEG saved at high quality can exceed 5 MB. Export Trade Me separately.
Ignoring the URL requirement
Kogan and the Mirakl marketplaces fetch images rather than accepting uploads. Expiring links, private buckets and password-protected hosts are a leading cause of listings that appear to publish but show no image.
Letting your phone's HEIC files through
Australian and New Zealand sellers shooting on iPhone still hit this. Convert to JPEG before upload; most of these channels will not accept HEIC at all.
Your ANZ image checklist
- Shoot square on pure white, product at roughly 85 per cent frame fill, sRGB colour space
- Archive masters at 3,000 x 3,000 px and never edit them destructively
- Export Amazon AU at 2,000 px+, eBay AU and Trade Me at 1,600 px, Kogan at 1,000 px
- Keep Trade Me exports under 5 MB and check the file size, not just the dimensions
- Strip every watermark, badge, border and promotional overlay from the main image
- Convert HEIC to JPEG before any upload or feed push
- Host feed images at permanent, public, non-expiring URLs
- Check import reports on Kogan and Mirakl channels instead of assuming the offer went live
- Show genuine condition and defects clearly on Trade Me listings
- Re-verify each operator's spec once a quarter, since retailer marketplaces change theirs without much notice
The Australian marketplace field narrowed considerably in 2025. Fewer channels means less duplicated work, but the survivors are stricter and more automated than the ones that closed. Getting your master file right once, and exporting cleanly from it, is now the whole game.