image/4/io
Format Comparisons· Comparison

WebP vs JPEG for website images

When to keep JPEG in the workflow and when WebP should be the default delivery format for raster web assets.

This comparison is mostly about delivery versus source. JPEG often survives as a source or upload format; WebP is usually the better delivered asset.

Default pick

WebP for delivered raster images

Keep JPEG for

Legacy workflows and source interchange

Watch closely

Transparency needs and editing handoffs

Decision rule

If the image is being delivered on the modern web, WebP is usually the better default. If the image is moving between tools, vendors, or older systems, JPEG may still stay in the source workflow.

Where JPEG still matters

  • Long-established editorial and DAM workflows.
  • Third-party upload paths that still standardize around JPEG.
  • Source libraries where compatibility matters more than final delivery efficiency.

Implementation pattern

Let JPEG stay upstream and WebP ship downstream

<picture>
  <source srcset="cover.webp" type="image/webp" />
  <img src="cover.jpg" alt="Cover image" width="1200" height="800" />
</picture>

Checklist

  • Use WebP by default for delivered raster assets.
  • Keep JPEG as a source only when the workflow demands it.
  • Do not use JPEG where transparency is required.
  • Compare by delivered quality at the same visual target.

Common mistakes

  • Treating JPEG and WebP as if they serve the same role in the pipeline.
  • Forcing JPEG to remain the final delivery format because “that is what the team uploads.”
  • Comparing files without matching the visual target or compression budget.

Quick answers

Is JPEG still useful on websites?

Yes, mostly as a source or fallback. But for the delivered raster asset, WebP is usually the better default today.

Should product photos stay JPEG?

They can start as JPEG in the workflow, but they should usually be delivered as WebP or AVIF when the stack supports it.