Browser-only image tool
Product Image Optimizer
Every e-commerce platform has different image requirements — file size limits, pixel minimums, format rules. This hub covers the exact specs for Shopify, Amazon, Etsy, eBay, and WooCommerce, with free compression tools for each.
Compress or resize your product image to the exact specification required. Open the compress tool →
E-commerce image requirements — quick reference
| Platform | Max file size | Recommended size | Min pixels | White BG | Best format |
|---|---|---|---|---|---|
| Shopify | 20 MB | Under 1 MB | 800 px | No | JPEG / WebP |
| Amazon | 10 MB | Under 3 MB | 1000 px (1600 for zoom) | Yes (MAIN) | JPEG |
| Etsy | 1 MB | Under 900 KB | 2000 px (recommended) | No | JPEG |
| eBay | 7 MB | Under 1.5 MB | 500 px (1600 for zoom) | No | JPEG |
| WooCommerce | Host-dependent | Under 200 KB | 600 px | No | JPEG / WebP |
Platform-specific guides
- 🛍 Compress images for Shopify — under 1 MB, 2048 px square, JPEG / WebP
- 📦 Resize images for Amazon — 1600 px minimum, white background, JPEG
- 🧵 Compress images for Etsy — under 1 MB hard limit, 5:4 ratio
- 💰 Resize images for eBay — 1600 px for zoom, no white BG required
- 🛒 Optimize images for WooCommerce — under 200 KB, 1200 px, Core Web Vitals focus
Why product image size matters for sales
Image quality and file size pull in opposite directions — but they don't have to. A JPEG compressed to 80–85% quality is visually indistinguishable from the original to most buyers, but loads 3–5x faster. That speed difference matters: a 1-second delay in mobile load time reduces conversions by approximately 20% (Google/Deloitte data). Compressing product images is one of the highest-ROI technical optimisations available to online sellers — it's free, takes minutes, and has a direct, measurable effect on page speed and revenue.
FAQ
What image size works for all e-commerce platforms?
There is no single image size that is optimal for all platforms. However, a 1600 x 1600 px JPEG at 85% quality (approximately 500 KB–1 MB) is a reasonable universal starting point: it meets Amazon and eBay's zoom requirements, is large enough for Shopify's zoom feature, and can be further compressed for Etsy's 1 MB limit. For WooCommerce, 1200 x 1200 px under 200 KB is the performance target.
Should product images have a white background?
Amazon requires a pure white background (RGB 255,255,255) for main product images. Etsy, eBay, Shopify, and WooCommerce do not mandate white backgrounds, but white or neutral backgrounds consistently outperform coloured or busy backgrounds in conversion tests — they put the focus on the product and look clean on any device.
What is the best format for product images — JPEG, PNG, or WebP?
JPEG is the best default format for product photography across all platforms. It offers the smallest file size at acceptable quality. PNG is only needed for images requiring transparency. WebP is the modern standard — 25–35% smaller than JPEG — and is increasingly supported by platforms (Shopify serves WebP automatically; WooCommerce can be configured to serve WebP via plugins). If your workflow supports WebP, use it; otherwise, JPEG is the safe universal choice.
How do I batch compress product images for e-commerce?
For individual images, use the browser-based tools on this page — no upload, no account. For bulk compression of many product images, options include: Squoosh (Google, free, browser-based), ImageOptim (Mac desktop, free), or a WordPress plugin like ShortPixel or Smush if uploading to WooCommerce. For Shopify, the free Crush.pics app compresses images after upload. For Amazon, compress before uploading to Seller Central as Amazon does not re-compress uploaded images.
Do large product images hurt my SEO?
Yes. Large product images slow down page load times, which negatively affects Core Web Vitals — specifically Largest Contentful Paint (LCP). Google uses Core Web Vitals as a ranking factor. Product pages with slow LCP rank lower than faster equivalents in organic search. Compressing product images below 200 KB (for WooCommerce and Shopify) or below 1 MB (for Etsy) directly improves LCP and, over time, search rankings.
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