JPG vs WebP: Which Is Better for Website Images?
JPG is often still fine for website images, but WebP is usually better when you need a lighter page.
JPG is still everywhere because it is easy to make, easy to share, and good enough for a huge amount of web content. WebP usually wins when you want the same image job to cost less in bytes. The question is not whether JPG is obsolete. It is whether this page gets a real benefit from switching.
Why JPG is still common on real websites
JPG is still everywhere because cameras, design tools, and many publishing tools already export it by default. It is familiar, widely compatible, and still good enough for a lot of everyday web use.
That is why a lot of optimization work starts with JPG rather than replacing it at the source. The format persists because it is easy to work with, not because people do not know better formats exist.
Where WebP creates a better delivery path
WebP usually makes more sense when a JPG is headed to a blog post, landing page, or product listing and page weight matters. In those cases, you can often cut bytes without changing what the image is doing on the page.
WebP is not just a newer format on paper. In many cases, an existing JPG simply needs a lighter delivery format, not a full rebuild.
When to leave the file as JPG
If the current tool or destination already works well with JPG and the image weight is acceptable, keeping JPG is fine. Not every file needs format churn just because a newer codec exists.
Switch to WebP when the image is clearly web-bound and the page would benefit from a lighter asset.