WebP to JPG: why you got one and what to do
Where WebP comes from
Google announced WebP in 2010 to make web images lighter. Many sites now serve it automatically, so a picture you right-click and save from a browser may arrive as .webp even though it looked like an ordinary photo.
Where WebP still causes trouble
Older versions of photo editors, some print shops, email tools and government or job-application portals only accept JPG or PNG. WordPress, for example, only started accepting WebP uploads in version 5.8 in 2021. A JPG sidesteps the problem.
Quality, size and a second compression
WebP and JPG are both lossy, so converting compresses the picture again. Use 90 or higher if the result matters. Because WebP is more efficient, the JPG will usually be larger than the file you started with.
Transparent and animated files
Transparent WebP images become white-backed and animated ones become a still frame. If you need transparency, convert to PNG with a different tool instead.
Keep the original if you can
If the picture came from your own website or design project, keep the WebP as your master. Use the JPG only for the places that cannot read WebP.
Saving images from a site and getting WebP every time? Convert the batch here once instead of fixing each file separately.