Bulk Product Image Resizer

Resize product photos in bulk

Online stores look more professional when every product photo has the same size and framing. This bulk image resizer takes a batch of PNG, JPEG or WebP photos, resizes them without distortion, optionally pads them onto an identical canvas, and exports consistently named files you can download one by one or as a single ZIP. All processing happens in your browser, so supplier photos and unreleased products never leave your computer.

1. Add photos. Up to 20 images per batch, 20 MB each, 80 MB total, and up to 24 megapixels per image.
2. Set dimensions. Enter the maximum width and height (or the exact canvas size when padding).
3. Pick a mode. Fit inside scales each photo to fit within the box and keeps its own aspect ratio. Pad to canvas produces images of exactly the size you entered, filling the remaining space with your background color or transparency.
4. Export. Choose WebP, JPEG or PNG, a quality between 0.1 and 1, and a filename prefix such as product. Files are numbered in order.

Marketplace image requirements

• Amazon: according to Amazon's product image guidelines, main images need a pure white background (RGB 255, 255, 255), the product should fill 85% or more of the frame, and images should be 1,000 pixels or larger on the longest side to enable zoom. JPEG is the preferred format.
• Shopify: Shopify's image size guide recommends 2048 × 2048 pixel square product images and notes that zoom needs images larger than 800 × 800 pixels. Shopify accepts images up to 5000 × 5000 pixels and 20 MB.
• Your own site: 1200 × 1200 (the default here) in WebP at quality 0.8 is a good balance between sharpness and page speed.

Requirements change, and categories such as clothing or jewelry can have extra rules, so always confirm on the platform's own help pages.

White background vs transparent

JPEG does not support transparency, so padding is always filled with your chosen color. For PNG and WebP you can choose transparent padding — useful for images placed on colored website sections — or a solid color for marketplaces that demand white. Note that this tool pads around your photo; if the photo itself has a grey or cluttered background, remove it first with the background remover — it cuts the subject out with a local AI model, no upload — then pad the transparent PNG here.

Getting the smallest files

File size drops with smaller dimensions and lower quality. Start with WebP or JPEG at 0.8, open the preview at full size and only go lower if the result still looks clean. PNG is lossless, so the quality slider has no effect and files can be larger than the original JPEG. Animated images export as a single still frame.

Preparing a product video as well? Use the Instagram video compressor or compress MP4. For printed catalogs, run your images through the print DPI checker.