WebP to JPG: why the file won't open, and how to convert it
You save a picture from a website, and the file you get is called image.webp. Then it will not open: not in an old photo editor, not in an upload form, not on a print shop's site. Nothing is wrong with the picture. The problem is the container format, and the fix is a one-step conversion — which you can do here, in your browser, without installing anything and without uploading the file.
Why more and more pictures arrive as WebP
WebP is Google's image format. At the same visual quality it is usually 25–35% smaller than JPG, and it can keep transparency. That is why most large websites, and now many cameras and phone apps, produce it automatically. A picture you save from a page, or receive in a chat app, is therefore often WebP behind the scenes even when the page showed a JPG.
Every current browser can display WebP. Older software cannot: older versions of Windows Photo Viewer, some print-shop and fax software, a number of upload forms that check the file extension, some office suites, and many older e-mail and blog systems still only accept JPG or PNG. The picture is fine; the program just refuses the format.
How to convert it here
- Open Convert image format and choose the WebP file, or drop it on the page. Several files at once also work.
- Leave Convert to on JPG. Quality 90 keeps the picture looking unchanged to the eye; drop the slider only if the file has to be smaller.
- Download the result, or take the whole batch as one ZIP file. The image keeps its full pixel size.
There is no install, no account and no limit. The page's security policy stops it from sending anything to a server, and you can turn off the internet once the page has loaded.
What happens to the picture
- Size: unchanged. Nothing is scaled or cropped.
- Quality: JPG is compressed, so the file is re-encoded once. At quality 90 the difference is very hard to see, but it is not lossless.
- Transparency: JPG has none. Any see-through area is filled with the background colour you pick, white by default.
- Animation: a moving WebP becomes a still picture, its first frame only.
- Metadata: camera details and GPS location are not carried over into the new file.
When PNG is the better answer
Converting WebP to PNG keeps the sharp edges of a screenshot or a logo and keeps transparency, and the size difference is much smaller than JPG-to-PNG because a WebP was already compressed. Use PNG when the target program wants lossless, or when the image has text or line art in it. If your problem is the file being too large rather than the wrong format, keep it as WebP or compress it here instead of converting.
Then use these tools
Once you have a JPG, the rest of the site works on it as usual: fit it under a KB limit for an online form, resize it to exact pixels such as 600×600, strip its location and camera data before you share it, or put several images into one PDF.
Questions
Can I convert WebP to JPG on my phone?
On iPhone and Android the Photos app can usually do it: open the picture, share it, choose Save as JPG or "Export as JPEG", and pick a quality. On a computer, this page works in any current browser and needs nothing installed.
Will converting to JPG make the picture look worse?
Only slightly, and only once. JPG is a lossy format, so the file is compressed again. At quality 90 the change is very hard to notice. If you need a guaranteed identical copy, use PNG instead, or use Remove EXIF, which strips the metadata without touching the picture at all.
Why did my transparent background turn white?
JPG cannot store transparency. Choose the background colour you want in the converter, and it is painted under the see-through areas before saving. If you need the transparency to survive, convert to PNG or WebP instead.
Does this page upload my picture?
No. The file is read and written by your own browser, and the page's security policy blocks any connection to a server. There is no sign-up, no watermark and no limit.