Magento / Adobe Commerce WebP Product Images

Where Magento stores the problem

Look at catalog/product. Those files are the source for listing, product, and zoom images. WebP masters shrink disk, cache generation time, and TTFB after deploy when caches are cold.

Why it matters

• Configurable products repeat images across SKUs.
• FPC does not make a 800 KB hero small.
• Extensions that 'add WebP' often duplicate every file on disk.

How to do it

1. Export the catalogue image folder (or a category at a time).
2. Convert to WebP at 1600 px, quality 80 (zoom still looks fine on a laptop).
3. Replace files keeping Magento filenames, then bin/magento catalog:images:resize if needed.

Settings that work

Base 1600 px. Small/thumbnail can remain generated. Avoid 4000 px 'zoom' masters unless you sell art prints on a 5K display.