You right-click an image on a website, choose "Save image as," and the file arrives as .webp. Then your editor can't open it, or the form you're filling in says only JPG and PNG are allowed. It's one of the most common small frustrations on the web today.
Here's why it happens and how to fix it in a few seconds.
What WebP is
WebP is an image format created by Google. It can store photos with lossy compression like JPG, graphics with lossless compression like PNG, and transparency and animation too. In many cases a WebP image is smaller than a JPG or PNG of similar visual quality.
Why websites serve WebP
Smaller images load faster, and faster pages are better for visitors and for search rankings. That's why many sites, content-management systems and image services automatically deliver WebP to browsers that support it, even if the original upload was a JPG or PNG. When you save the picture, you get whatever format the server sent.
Current browsers handle WebP without any trouble, so on the web itself it's invisible. The trouble starts when the file leaves the browser.
Where WebP causes problems
- Upload forms for jobs, visas, schools and marketplaces that accept only JPG or PNG.
- Older photo editors and some design or office programs.
- Print services and kiosks that expect common formats.
- Messaging and email setups that don't preview WebP properly.
In these cases the simplest answer is to give the other side what it expects: a JPG.
How to convert WebP to JPG
- Open the WebP to JPG converter.
- Drop in one or several .webp files.
- Leave the quality slider at its default, or adjust it. Higher values keep more detail and make larger files.
- Convert and download. With several files you can download them all.
The conversion happens in your browser, so your images are not uploaded to any server.
What happens to transparency
This is the one real difference to know about. JPG doesn't support transparency, but WebP does. If your WebP has a transparent background, converting to JPG fills the transparent area with white. That's usually what you want for a photo going into a document or form.
If you need to keep the transparency, such as a logo you plan to place on different backgrounds, convert to PNG instead using the WebP to PNG converter.
Will quality suffer?
Both WebP (in its lossy mode) and JPG are lossy formats. Converting from one to the other re-encodes the picture, which can cost a small amount of detail, and it can occasionally make the file larger rather than smaller. At the default quality the difference is normally hard to see. For anything important, keep the original WebP.
If the resulting JPG is bigger than a form allows, you can shrink it with the image compressor, or read our guide on compressing an image to 100KB or 200KB.
Should you avoid WebP altogether?
No. For your own website, WebP is a good choice and often speeds up pages. It's only when you need to share or upload a file somewhere unknown that JPG is safer. Our guide to image formats explains which format fits which job.
Quick summary
- Browsers save images as WebP when that's what the website served.
- Many forms and older programs don't accept it.
- Convert to JPG for universal compatibility; choose PNG if you need transparency.