--- title: "Coupang main image checker — free, in your browser | Herofab" description: "Check a product photo against Coupang's main-image rules: background colour and square format. Free, in your browser; nothing is uploaded." url: https://herofab.app/tools/coupang-product-photo-checker language: en updated: 2026-10-12 --- # Check your photo against Coupang's rules. Coupang sets rules for the main image that can be measured from the photo: background colour and square format. Drop a photo to see which ones it meets. It runs in your browser; nothing is uploaded. ![The brown leather tote alone on a white studio background, front view](https://herofab.app/img/ex/tote-packshot-1100.webp) Made with Herofab · Packshot studio ## Choose a marketplace and a photo. Rules come from each marketplace's own help pages, summarised in the [guides](https://herofab.app/guides/) (checked 11 October 2026). Size, file size and format are checked as well. ## What Coupang asks for. Source: [Coupang Marketplace Seller Academy — 상품 등록 가이드; Coupang Developers — 상품 생성 API](https://marketplace.coupang.com/mba/listing) · checked 11 October 2026 - **Main image:** White background - **Main image:** Square image, width equal to height - **Size:** The seller academy gives at least 500 pixels, with 1,000 × 1,000 pixels recommended; the product API accepts square images from 500 × 500 to 5,000 × 5,000 pixels - **Formats:** JPG or PNG - **File size:** 10 MB or less in the seller academy's listing guide; 3 MB or less through the product API - **Shape:** Square; an image that is not square is resized by Coupang and registered automatically - **Number:** One main image and up to 9 additional images; Coupang may change registered images to fit its standards - **Main image:** The listing guide's answer on image specifications: 1,000 × 1,000 pixels or larger, showing only the product clearly on a white background [Coupang image guide](https://herofab.app/guides/coupang-product-image-requirements) · [Product photo checker](https://herofab.app/tools/product-photo-checker) · [Coupang image resizer](https://herofab.app/tools/coupang-image-resizer) ## How each rule is measured. - **Background colour:** The background colour is the median of a thin band along all four edges. A pure-white rule passes only when that band is RGB 255, 255, 255; near-white values such as 253 are reported with their exact colour. - **Square format:** Width and height must match to within 2%. - **Scene photos:** Room and lifestyle photos have no plain background to measure against, so fill, edges and shadow are marked as not measured rather than guessed. ## Checkers by marketplace. [Amazon](https://herofab.app/tools/amazon-product-photo-checker) · [Google Shopping](https://herofab.app/tools/google-shopping-product-photo-checker) · [Zalando](https://herofab.app/tools/zalando-product-photo-checker) · [Walmart](https://herofab.app/tools/walmart-product-photo-checker) · [Etsy](https://herofab.app/tools/etsy-product-photo-checker) · [TikTok Shop](https://herofab.app/tools/tiktok-shop-product-photo-checker) · [Kaufland](https://herofab.app/tools/kaufland-product-photo-checker) · [OTTO](https://herofab.app/tools/otto-product-photo-checker) · [Galaxus](https://herofab.app/tools/galaxus-product-photo-checker) · [Mercado Livre](https://herofab.app/tools/mercado-livre-product-photo-checker) · [Faire](https://herofab.app/tools/faire-product-photo-checker) · [Shopee](https://herofab.app/tools/shopee-product-photo-checker) · [Allegro](https://herofab.app/tools/allegro-product-photo-checker) · [Hood.de](https://herofab.app/tools/hood-de-product-photo-checker) · [CDON](https://herofab.app/tools/cdon-product-photo-checker) · [Fyndiq](https://herofab.app/tools/fyndiq-product-photo-checker) · [Cdiscount](https://herofab.app/tools/cdiscount-product-photo-checker) · [Ricardo](https://herofab.app/tools/ricardo-product-photo-checker) · [Heureka](https://herofab.app/tools/heureka-product-photo-checker) · [GLAMI](https://herofab.app/tools/glami-product-photo-checker) · [Best Buy Canada](https://herofab.app/tools/best-buy-canada-product-photo-checker) · [Facebook & Instagram Shop](https://herofab.app/tools/facebook-instagram-shop-product-photo-checker) · [Miinto](https://herofab.app/tools/miinto-product-photo-checker) · [Vinted](https://herofab.app/tools/vinted-product-photo-checker) · [Vestiaire Collective](https://herofab.app/tools/vestiaire-collective-product-photo-checker) · [Tokopedia](https://herofab.app/tools/tokopedia-product-photo-checker) · [Tiki](https://herofab.app/tools/tiki-product-photo-checker) ## Coupang main images, answered. **What background does Coupang require for the main image?** White background. The checker reads the background from the edges of the photo and reports its exact RGB value. **Does Coupang require square images?** Square image, width equal to height. The checker compares the width and height in pixels. **Where do these figures come from?** From Coupang Marketplace Seller Academy — 상품 등록 가이드; Coupang Developers — 상품 생성 API, read on 11 October 2026. Marketplaces update their rules; the [official page](https://marketplace.coupang.com/mba/listing) is the final reference. **Is my image uploaded?** No. The file is read and processed inside your browser; nothing is sent to a server.