Your images stay local
Processing happens on your device. Product photos are not sent to our servers, added to an account or used for training.
Prepare Amazon listing images. Keep zoom-ready detail.
Drop your imagesSupports JPG, JPEG, JFIF, PNG, WebP, AVIF, GIF and BMP. GIF animation is not preserved; only the first frame is converted. here, or
Up to 100 images, max 20 MB eachDefault save location:(click to change)
Convert my images automaticallyAdd images saves converted files to Downloads by default. Add folder saves results to that folder. Note: every supported image in the folder will be converted automatically.
No images in the queue yet.
REAL-WORLD TEST
An Amazon product-image test.
A detailed product photo was converted to Amazon's preferred JPEG format and checked at the same displayed size as its source. Drag the divider to compare the exact files.
Original · PNG
- Format
- PNG
- Dimensions
- 1254 × 1254 px
- File size
- 1020 KB
Preset · JPEG
- Format
- JPEG
- Dimensions
- 1254 × 1254 px
- File size
- 86 KB
- Saved
- 91.5%
- Visual review
- No obvious difference
PRESET
- JPEG output
- Balanced · quality 84
- Longest-edge limit 2000px · no upscaling
Method: the supplied PNG was processed once with the exact displayed SellerImg preset. Because its 1254 px longest edge is below the preset limit, it was not resized or enlarged. Format, dimensions and byte sizes come from the actual files; the slider renders both images at the same size.
Test date · August 4, 2026WHY IT EXISTS
A free image optimizer for people who just need the job done.
Seller Image Studio is a browser-based batch image converter for online shops. It resizes and converts product photos to WebP, AVIF or JPEG, with practical starting presets for websites, WooCommerce, Shopify, Amazon and TikTok Shop.
No account, credit card, daily conversion credits or ad-watching step is required. Add your images, choose the result you need and download the finished files.
Built for real batches
Convert individual files or a complete folder, then download the results together instead of repeating the same task image by image.
Originals stay untouched
The converter creates new files and never replaces your source images. You remain in control of every original.
Useful, honest presets
Storefront presets give you a sensible format, quality and size to start from. You can still adjust every setting before processing.
Image tools should help you finish a listing—not interrupt the work with pop-ups, trial limits or a subscription screen.
Free to use · No image uploads · No forced sign-upPRESETS
Settings for common storefronts.
Choose a starting point for your platform. You can still change the format, quality and dimensions before processing.
AMAZON WORKFLOW
Prepare consistent product-photo dimensions without overwriting originals.
The Amazon preset creates new balanced JPEG files and starts with a 2000 px longest-edge limit. It preserves aspect ratio and does not enlarge smaller source images.
Marketplace requirements can differ by country, category and main or secondary image type. Treat the preset as a preparation step and check the latest rules before submission.
When the selected folder has read and write permission, individual results and the ZIP can be saved back to that folder. Without folder write permission, the ZIP is downloaded to the browser's default download location.
Balanced JPEG start
Use a broadly compatible export format with balanced quality selected for a practical file-size and detail tradeoff.
Resize without stretching
The tool limits the longest edge while preserving the image's existing proportions.
Keep source files safe
Every result is created as a new file. Original photography is not replaced or modified.
Verify listing rules
The tool does not automatically crop, remove backgrounds or validate category-specific marketplace requirements.
Batch resizing handles file preparation; final marketplace compliance still depends on the current listing rules for each image.
JPEG preset · 2000 px start · No automatic cropPRIVACY
Image processing stays in your browser.
Your images are not uploaded to our servers, stored in an account or used for training. Refresh the page and the current list is cleared.
No image uploadsNo analytics cookiesOriginal files unchanged
FAQ
Common questions.
Why does the Amazon preset use JPEG at 2000 px?
Amazon lists JPEG, TIFF, PNG and non-animated GIF as accepted formats but says JPEG is preferred. Its product-detail guide says 1600 px or more on the longest side provides the optimal zoom experience, with 1000 px as the minimum for zoom. The 2000 px preset adds practical headroom while staying well below Amazon's 10,000 px maximum; it is a starting point, not an approval guarantee.
Does the tool create a white background?
No. It resizes, compresses and converts images but does not remove or replace backgrounds.
Will it crop product images to a square?
No. The original aspect ratio is preserved. Crop the source separately if your listing workflow needs a different composition.
Does the preset guarantee Amazon approval?
No. Requirements vary by marketplace, category and image type. Always check the current listing guidance before uploading.
What does the selected platform preset change?
Amazon prefers JPEG and recommends images larger than 1000 px on the longest side for zoom. This preset uses balanced JPEG with a 2000 px longest-edge limit.
Official references:Amazon product image requirements
How do output format, quality and longest-edge settings work?
WebP is the practical default for most storefronts; AVIF usually makes smaller files but needs platform or server support; JPEG has the widest ecommerce compatibility but usually produces larger files. Smallest prioritizes file size, Balanced is the recommended starting point, and High preserves more detail. The longest edge accepts any whole number from 32 to 15,000 px, preserves aspect ratio and never enlarges smaller images. Leave it empty to keep the original dimensions. Values above 2,048 px are allowed, but can use substantially more memory and create larger files.
Amazon product image resizer
Prepare Amazon listing images.
Keep zoom-ready detail.
Preparing main and secondary images before Seller Central upload? Export the batch as balanced JPEG with a 2000 px longest-edge limit—a practical size above Amazon's 1600 px optimal-zoom guidance. The tool preserves proportions but does not create white backgrounds or validate category rules.
Processed on this device
LOCAL PROCESSING
ORIGIN01
JPG
WEBP
4.8 MB286 KB
94%lighter