Seller Image Kit
Prepare product photos in your browser. Batch resize, compress, add a watermark and download as ZIP. Free, with no uploads or account.
ONE BATCH. READY FOR YOUR SHOP.
A little polish for your product photos.
Resize without cropping, compress, and add your name. Your originals stay untouched.
தமிழில் உதவி
படங்களைத் தேர்ந்தெடுத்து, அளவு மற்றும் தரத்தை அமைக்கவும். விரும்பினால் உங்கள் கடையின் பெயரைச் சேர்க்கவும். Prepare my photos பொத்தானை அழுத்தி, முடிவுகளை ZIP கோப்பாகப் பதிவிறக்கலாம். படங்கள் உங்கள் சாதனத்திலேயே செயலாக்கப்படும்.
Prepare a collection of product photographs without moving between separate resizing, compression and watermark tools. Seller Image Kit takes JPG, PNG and WebP files, applies your chosen settings to each, and gives you individual downloads or a single ZIP archive.
Processing happens inside this browser. The tool does not upload your photographs or create an account. Start with your original files and keep them separately: downloaded JPG files are working copies intended for listings, email and everyday sharing.
How to use the Seller Image Kit
Choose a batch
Select up to 30 JPG, PNG or WebP photographs. For large collections or high-resolution camera images, use smaller batches so your device has enough memory.
Choose the size
Select the longest edge for your destination. The image keeps its original proportions and is never cropped or enlarged. A small original stays small rather than becoming artificially blurry.
Set the finish
Choose a quality level and optionally type your shop name. Turn on the 200 KB target if your upload form has a small file-size limit. This target is best effort, not a guarantee.
Prepare and download
Run the batch, review the actual file sizes and download one photograph or the full ZIP. Open the downloaded images to check important details before publishing a listing.
Choosing a practical photo size
The 1200 pixel preset is a useful starting point for ordinary product photos. Choose 2000 pixels when buyers need to inspect texture or detail. The 800 pixel option makes smaller listing images, while 600 pixels can suit document forms that accept modest dimensions. Always check the destination requirements before selecting a preset.
These presets set the longest edge rather than forcing a square. For example, a 2400 by 1600 photograph becomes 1200 by 800 with the default preset. Nothing is cut off. If a marketplace requires a square image, use the image cropper first, then process the cropped copy here.
Quality and the 200 KB target
A quality setting around 80 is a reasonable place to start for photographs, but the right setting depends on the image. Fine patterns, labels and small text show compression artifacts sooner than plain backgrounds. Compare the downloaded copy with the original before deciding that a smaller file is good enough.
The optional 200 KB target repeatedly lowers JPG quality while keeping the chosen dimensions. Some complex images remain above the target even at the lowest attempted quality. The results explicitly flag those images. Select a smaller longest-edge preset and run the originals again if the form still rejects the result. File sizes use 1024 bytes per KB here; some upload forms calculate their limit differently.
Watermarks, backgrounds and filenames
The watermark is placed near the lower right corner with a shadow for contrast. Keep it short so it remains readable on a phone. Preview it against both light and dark products. A watermark identifies your shop visually; it does not prevent copying or prove ownership.
All output is JPG. Transparent areas become white, which is useful for many product photos but unsuitable when you need transparency. Use the separate image converter for a transparent PNG instead. Files receive a number prefix so two originals with the same name do not overwrite each other in the ZIP. Animated images and metadata preservation are not supported by this workflow.
Working comfortably on a phone
Images are decoded in sequence and temporary decoded images are released after processing. The final files remain in memory until you leave or prepare another batch. Very large photographs can still exceed the memory available on a phone; processing fewer files is usually the easiest fix.
Keep this page open until processing and the ZIP download finish. If archive creation fails, use the individual download buttons. Refreshing or closing the page removes the selected files and generated results from the tool. Your original photos remain in their original location on your device.
Frequently asked questions
Will it upload my photos?
No. Resizing, drawing the watermark and exporting the results happen locally in your browser. The tool does not send your selected photographs to a processing server.
Does it change the originals?
No. It produces new JPG files. Keep original images for future editing, especially if you need print quality or transparency.
Why is the result sometimes larger?
An already compressed or very small original can become larger after conversion. Check the before and after sizes. Keep the original when the new result does not improve your intended use.
Can I use the photos commercially?
You can use the tool for your own product work. You still need the rights to the photographs, logos and any other material you choose to process.
100% private. Files are processed on your device and never uploaded.
Instant results. No upload queue. Processing time depends on your device.
Free forever. No signup, no watermark, no paid tier.
Works everywhere. Use a modern browser on your phone or computer.
Related tools
Seller Image Kit is one of all the free tools on ToolNest. No account or subscription needed — anywhere in the world.