Why Are WEBP Images Converted to PNG/JPEG in Both Shopify Admin and GraphQL API?

GraphQL Admin API Troubleshooting
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1

Hi everyone,

I’ve noticed that when I upload a WEBP image via Shopify Admin, the image is automatically converted and saved as either PNG or JPEG. The same behavior occurs when uploading WEBP images in the “Content - Files” section.

Additionally, when using the GraphQL API, I can successfully upload a WEBP image using staged uploads. However, when I later create a file from that image, Shopify automatically converts it to PNG or JPEG.

Could someone please explain what is happening with these images? Is this expected behavior, or is there a way to preserve the WEBP format?

Thank you for your help!

2

Can you share the store where this is happening?

3

Hi,

It appears this behavior can now be reproduced on any store. I’ve tested it on a new development store, and the result is the same—any WEBP image uploaded to a product or added via Files is automatically converted to JPEG or PNG. You can see it here: http://test-store-webp.myshopify.com

Let me know if you need any further details.

Thanks!

4

DMing you for more info.