Ecom Image Optimizer
JPG to WebP Converter
Convert JPG to WebP for the same quality in meaningfully smaller files.
Last updated
WebP consistently beats JPG at the same visual quality, typically by 25–35% in file size. Across a catalogue of hundreds of product photos that adds up to a materially faster storefront.
The conversion is straightforward: drop your JPGs and they come back as WebP at quality 82, which is a well-tested balance for product photography. Push the quality slider higher for detailed textures, or set a target file size if you have a strict performance budget.
How to use it
- 1Drop your .jpg files onto the tool above.
- 2Output is already set to WebP at quality 82.
- 3Optionally set a target file size in the left panel to cap every image.
- 4Download the WebP files individually or as a ZIP.
Frequently asked questions
How much smaller is WebP than JPG?
Usually 25–35% smaller at equivalent visual quality. The saving is less dramatic than converting from PNG, because JPG is already compressed, but it is free performance across an entire catalogue.
Is converting JPG to WebP lossy?
Yes, it re-encodes once. Going from an already-compressed JPG to WebP means two lossy passes, so work from the highest-quality original you have rather than a JPG that has been re-saved repeatedly.
Can I upload WebP to Shopify, Amazon or Etsy?
Shopify accepts WebP directly. Amazon and Etsy prefer JPG for listing images, so for those, convert to JPG instead and keep WebP for your own website.
Do I need to keep the original JPGs?
Keep your highest-quality originals as archives. Conversion is one-way in practice: you cannot recover detail by converting back.
Will this improve my Core Web Vitals?
Smaller images directly improve Largest Contentful Paint, which is one of the three Core Web Vitals. It is usually the single biggest speed win available on an image-heavy product page.