Is uploading product images in WebP format a good idea?

Topic summary

Main issue: whether using WebP for product images achieves better quality-to-size performance without breaking compatibility.

Key considerations:

  • Compatibility: Internet Explorer (IE) reportedly lacks WebP support, raising risk of images not displaying for IE users.
  • Fallback behavior: Unclear if Shopify automatically serves a JPEG fallback to browsers that don’t support WebP.
  • Quality/performance: Interest in WebP’s smaller files for faster load times while maintaining visual quality; JPEG remains the widely supported baseline.

Definitions:

  • WebP: a modern image format offering improved compression.
  • JPEG: a standard image format with broad browser support.
  • Internet Explorer: a legacy browser with limited modern format support.

Status:

  • No responses or decisions yet.
  • Open questions: Does Shopify auto-convert or provide fallbacks for unsupported browsers? If not, what is the recommended setup to balance performance and compatibility?
Summarized with AI on January 11. AI used: gpt-5.

Should I upload product images in WebP format, for the sakes of best quality vs size therefore performance? Or would this be a bad idea because InternetExlorer does not support WebP? (or would Shopify automatically convert to Jpeg format for IE viewers?)

1 Like