JPG is the safest marketplace format
Most product photos work well as JPG because it is widely accepted and compact. It is usually the safest choice for marketplace uploads.
WebP and AVIF help websites
For your own website, WebP or AVIF can reduce file size and improve page speed. Keep JPG copies when broad compatibility matters.
When PNG matters
Use PNG for transparent product cutouts, screenshots, logos, or graphics with sharp text. For normal photos, PNG is often larger than needed.