Why you have a WebP in the first place
Many websites serve their images as WebP because it's smaller than JPG for the same look, and browsers have supported it for years. So when you right-click and save an image, you often get .webp — and then find that the form you're filling in, the slideshow program or the print shop doesn't take it. Converting to JPG fixes that.
What to expect
- The size may go up. WebP is efficient, so the same picture as a JPG is often a bit bigger at a similar look. Lower the quality slider if size matters, or use compress to KB for an exact limit.
- Transparency becomes white. WebP can be transparent; JPG can't. If you need to keep a transparent background, make a PNG with the resizer instead (Percentage 100, save as PNG).
- No quality comes back. If the WebP was compressed lossily by the website, its blur or artefacts are carried into the JPG. Converting changes the container, not the detail.
Respect the source
An image you saved from a website still belongs to whoever made it. Converting the format doesn't change what you're allowed to do with it.
Privacy
The WebP is decoded and re-encoded in your browser. The JPG carries no EXIF data, and nothing about the image is sent anywhere. The reverse is JPG to WebP.