Use an online converter and upload the WEBP file
Select JPG as the output format
Download the converted JPG file
Open the WEBP file in an image editor like Photoshop, GIMP, or Paint
Choose Save As or Export
Select JPG as the file type
Save the file
On Windows, open the image in Paint and use Save As JPG
On Mac, open the image in Preview and export it as JPG
On mobile, use a file converter app or image editor app
Rename the file extension from .webp to .jpg only if the image is already compatible and the app supports it