Seller utility
Batch product image standardizer
Drop in a batch of product photos, pick the target size, fit mode, background and naming rule — each image is processed on your device and bundled into a ZIP. Originals never upload.
Add images on the left — previews appear here, then everything packs into a ZIP.
Marketplace image sizes
| Platform | Main image | Notes |
|---|---|---|
| Amazon | 1000×1000+ (2000 enables zoom) | Pure white background for the main image |
| Shopify | 2048×2048 suggested | Squares keep grids tidy |
| Taobao / Tmall | 800×800+ | White-background main image |
| Etsy | 2000×2000 | First image cropped to thumbnail |
| eBay | 1600×1600 recommended | 500–9000px |
Sizes are each marketplace’s public guidance; requirements change, so check the seller docs before a big upload.
Fit on background vs crop to fill
“Fit on background” shrinks the whole photo until it fits inside the square and fills the gaps with your background color — the whole product stays visible, which is what marketplaces expect for main images. “Crop to fill” scales the photo until it covers the square and trims the overflow — good for lifestyle or secondary images where edge clipping is acceptable.
Frequently asked
What size do marketplaces want for main images?
Most want squares: Amazon recommends 1000×1000 minimum (2000 enables zoom), Taobao/Tmall 800×800+, Shopify suggests 2048×2048, Etsy 2000×2000. Use the 1000×1000 or 1200×1200 presets as starting points, not marketplace compliance checks — confirm the current image dimensions, background, crop and file limits for the specific marketplace and listing category before upload.
Fit on background vs crop to fill?
For product shots use fit-on-background: the whole item stays visible with clean margins — what marketplaces expect for main images. Crop-to-fill zooms and crops to a full square; good for lifestyle shots but can clip product edges.
Do transparent PNGs get a white background?
With fit + white background, transparent areas are filled white; choose PNG output with "keep transparency" to preserve it. JPG and WebP always fill transparency with the chosen color.
How many images per batch?
Up to ~200 per batch feels best; larger batches still work, time just grows linearly. Everything runs in your browser, so very large photos take a moment each — keep batches modest on mobile.
How does renaming work?
Default is "prefix-number" (e.g. sku-001.jpg); set the prefix to your style code and numbering starts at 1, zero-padded to 3 digits. Tick "keep original names" to skip renaming.