Product cards
Replace original catalog dimensions with card-sized WebP or AVIF variants.
reduce product image file size
Reduce product image KB without touching every catalog upload
Skymage reduces product image file size by generating right-sized WebP or AVIF variants for product cards, PDP galleries, mobile tiles, and related products while keeping the original catalog media in place.
File-size reduction test:
Original:
/products/jacket.jpg
2400px wide, 820 KB
Skymage product card:
?w=520&h=650&fit=cover&f=webp&q=82
Skymage mobile tile:
?w=360&h=450&fit=cover&f=webp&q=78
where KB hides
Product image file size is usually a slot mismatch
The problem is not only compression quality. Stores often send the same large product upload to product cards, gallery thumbnails, mobile grids, and related-product modules. Each slot needs a smaller file.
Mobile grids
Serve narrower variants for two-column mobile layouts and filtered category pages.
Gallery thumbnails
Avoid loading full gallery images for small thumbnail rails.
Related products
Reuse cached smaller files for upsells, bundles, and recommendation blocks.
first measurement
Measure one repeated path before a full catalog pass
Use one category page or product page to compare current image KB against Skymage variants. Once the visible quality is acceptable, roll the same URL pattern across the repeated template.
| Image slot | Smaller Skymage file |
|---|---|
| Desktop product card | ?w=520&h=650&fit=cover&f=webp&q=82 |
| Mobile product tile | ?w=360&h=450&fit=cover&f=webp&q=78 |
| Gallery thumbnail | ?w=220&h=220&fit=cover&f=webp&q=76 |
| PDP gallery hero | ?w=1400&fit=contain&f=avif&q=85 |
audit output
What the free file-size audit returns
Largest repeated files
Find product image paths that repeat and carry the most unnecessary KB.
Target dimensions
Map the rendered card, thumbnail, mobile, and gallery sizes to real variants.
Format and quality
Choose WebP or AVIF plus quality settings that preserve product detail.
Rollout command
Get the first Skymage URL pattern worth applying to one template.
free check
Send one URL to find product image file-size wins
Share a product, category, or catalog page. The audit will identify the repeated image path and smaller Skymage variants worth testing first.