Batch image compression
Bulk Product Image Compressor
Reduce product image weight without guessing. Every file is decoded and re-encoded in your browser, so the size you see is the size you get.
Compress JPG, PNG, WebP and AVIF, keep transparency, and compare the real before and after byte count for each image.
Drop product images here
JPG, PNG, WebP or AVIF · processed locally in your browser
Up to 20 images per batch · max 40 MB per file
Settings
Local processingKeeping the format re-encodes JPG as JPG, PNG as PNG and WebP as WebP.
Applies to JPG, WebP and AVIF. Lower values mean smaller files.
PNG is re-encoded losslessly: metadata is stripped and the pixel data is rebuilt. Transparency is preserved.
AVIF is encoded only when your browser supports it. Otherwise the file fails with a clear error instead of being renamed.
Original
0 B
Output
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Images are processed on this device only. Nothing is uploaded, stored or analysed on a server.
Preview
Select an image from the queue to preview the result.
Queue(0)
No images yet
Add product photos to see them here with their size and dimensions.
How to compress product images in bulk
Add your images
Drop in up to 20 files. The queue immediately shows the original size of each image.
Pick quality and format
Choose an output format and adjust quality. The preview re-encodes the selected image with the same settings.
Compare and download
Each row shows the real output size and percentage saved. Download individually or as a ZIP.
What the compressor does
Real encoding, not renaming
Images are fully decoded and re-encoded with the browser encoder, so reported savings come from the actual output bytes.
Honest results
If a file gets larger, the tool shows it. The keep-original option prevents accidental size regressions.
Transparency preserved
PNG, WebP and AVIF output retain the alpha channel. JPG output is flattened onto white.
Per-file control
Every image has its own status, error reason and retry, so one broken file never stops the batch.
Batch ZIP download
Download the whole queue in one archive with unique file names.
Quality preview
Preview the selected image before committing the whole batch.
When to use it
Under marketplace limits
Bring oversized product photos under a storefront or marketplace file size limit.
Faster product pages
Heavy images slow down product pages and hurt Core Web Vitals. Lighter files load faster on mobile.
Bulk campaign assets
Compress a whole folder of images for ads, catalogues or email without opening a desktop editor.
Compressor questions
Does compression reduce image dimensions?
No. The compressor keeps the pixel dimensions and changes the encoding. Use the resizer if you also need smaller dimensions.
Why is my compressed PNG not much smaller?
PNG is lossless. Re-encoding removes metadata, but photographic content does not shrink like JPEG. Converting to WebP usually gives a much smaller file.
What quality should I use?
For product photos, 75–85% is usually visually indistinguishable from the original while saving a large amount of weight.
Can I keep transparency?
Yes, as long as the output format supports it: PNG, WebP or AVIF. JPG has no alpha channel.
Is the original file modified?
Never. The original file stays untouched on your device and only the processed copy is downloaded.