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 TikTok Shop product images. Keep the batch consistent.
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
A TikTok Shop listing-image test.
A square product photo was converted to JPEG without cropping, then 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 1600px · 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.
TIKTOK SHOP WORKFLOW
Create a consistent set of listing images without uploading source files.
The TikTok Shop preset uses balanced JPEG and starts with a 1600 px longest-edge limit. It creates new files and preserves the original aspect ratio.
Requirements may differ by region, category and listing surface, so verify current Seller Center guidance before publishing.
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.
Compatible JPEG start
Begin with balanced JPEG output, or switch the entire batch to WebP or AVIF when your workflow supports it.
Preserve proportions
Limit the longest edge without stretching the image or enlarging smaller product photos.
Process up to 100 files
Prepare a launch or catalog batch with the same settings and download the results together.
Check regional rules
Use the preset as a starting point and verify the current image requirements for your TikTok Shop market and category.
Keep the batch consistent, preserve the originals and review marketplace requirements before the final upload.
JPEG preset · 1600 px start · Local processingPRIVACY
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 TikTok Shop preset use JPEG at 1600 px?
TikTok Shop accepts JPG, JPEG and PNG and requires high-resolution images of at least 600 × 600 px, with a 10 MB maximum in its current US Seller Academy guide. Balanced JPEG is a broadly compatible choice for product photos, and 1600 px provides working headroom above the minimum without being an official target size. TikTok recommends 1:1 images, but this tool does not crop; prepare the composition separately when needed.
Official references:TikTok Shop US product image guidance
Does the tool crop listing images?
No. It preserves the source aspect ratio and only reduces the longest edge when resizing is enabled.
Does the preset guarantee listing approval?
No. Marketplace requirements can change and vary by region, category and image type. Confirm the current rules before publishing.
Can I process a complete product-photo folder?
Yes. Import supported images from a folder and apply one preset. With folder write permission, individual results and the ZIP can be saved to that folder; without permission, the ZIP uses the browser's default download location.
What does the selected platform preset change?
TikTok Shop accepts JPG, JPEG and PNG, recommends a 1:1 aspect ratio, and requires at least 600 × 600 px. This preset uses balanced JPEG with a 1600 px longest-edge limit; it does not crop images to a square.
Official references:TikTok Shop 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.
TikTok Shop image resizer
Prepare TikTok Shop product images.
Keep the batch consistent.
Preparing up to nine listing images for each product? Export a larger catalog batch as balanced JPEG with a 1600 px longest-edge limit. TikTok Shop accepts JPG, JPEG and PNG from 600 × 600 px and recommends 1:1; this tool preserves the source ratio and does not crop images square.
Processed on this device
LOCAL PROCESSING
ORIGIN01
JPG
WEBP
4.8 MB286 KB
94%lighter