How to Resize Product Images for Your Online Store

Every online marketplace has specific image size requirements, and getting them right is one of the easiest ways to improve how your products look and sell. This guide covers the exact dimensions needed for Amazon, Shopify, Etsy, and eBay, plus how to resize your photos quickly using free tools.

Every online marketplace has specific image size requirements, and uploading the wrong dimensions can hurt your listings. Amazon requires a minimum of 1000 pixels on the longest side for zoom functionality. Shopify recommends 2048 x 2048 pixels for square product images. Etsy works best with images at least 2000 pixels wide. If your images are too small, they look blurry when customers zoom in. If they are too large, they slow down page load times and waste bandwidth. Getting the dimensions right is one of the easiest ways to improve how your products look online.

Amazon has some of the strictest image requirements of any marketplace. The main product image must have a pure white background (RGB 255, 255, 255), and the product should fill at least 85% of the frame. Images must be at least 1000 pixels on the longest side to enable zoom, and Amazon recommends 2000 pixels or more for the best experience. Accepted formats are JPEG, PNG, TIFF, and GIF (non-animated). Each listing supports up to 9 images, and sellers who use all available image slots see significantly higher conversion rates.

Shopify stores work best with square images at 2048 x 2048 pixels, which display cleanly in product grids and detail pages. Etsy recommends images at least 2000 pixels wide with a 4:3 aspect ratio for listing photos. eBay requires a minimum of 500 pixels on the longest side but recommends 1600 pixels for the zoom feature. Regardless of the platform, keeping your product images consistent in size and aspect ratio makes your store look more professional and trustworthy to buyers.

Open the IsoPeel Resize tool and upload your product photo. Choose a preset for your target marketplace or enter custom dimensions. The tool preserves image quality while resizing, so your product details stay sharp. You can resize individual images or process several in a row. Once resized, download the result and upload it directly to your store. No software installation needed — everything runs in your browser.

Always start with the highest resolution photo you have and resize down rather than up. Enlarging a small image creates blurriness that no amount of sharpening can fix. Shoot your products with good lighting and a steady camera or tripod to capture maximum detail. If you need both a large hero image and small thumbnails, resize from the original each time rather than resizing an already-resized copy. For square marketplace formats, leave a small margin of white space around the product so it does not look cramped against the edges.