What this does
Takes .webp files and re-encodes them as ordinary JPGs, in your
browser, up to 20 at a time. Drop the files, pick a quality, press
Convert to JPG, and download each result. Nothing is
uploaded — the decode and the encode both run in your tab. The page is a
preset of the general image converter with the
output locked to JPG.
Why did the image I saved come down as WebP?
Because the site served it that way. WebP is Google's web image format, released in 2010 and derived from the VP8 video codec. It is smaller than JPG at the same visual quality, so CDNs, WordPress, Shopify and most image pipelines now hand browsers WebP by default. "Save image as" gives you what was served, not the JPG the site owner originally uploaded. Browsers cope; a lot of software that only receives images does not: job-application and visa portals, marketplace listing forms, older CMS media libraries, some email clients, and print shops that ask for JPG or TIFF. JPG has been the universal photo format since 1992, which is why converting to it makes the rejection go away.
How do I convert WebP to JPG?
- Drop
.webpfiles on the box above, or click it to choose them. The limit is 20 files per batch and 50 MB per file; anything over 20 MB still converts but shows a "may be slow" note. - Leave the quality slider at 92, or drag it between 10 and 100.
- Click Convert to JPG. Each row gains a Download button showing the new size; the file is saved as the original name with
.jpgin place of.webp.
Which quality setting should I pick?
The WebP was almost certainly lossy already, so you are compressing a second time. The default of 92 keeps that second pass invisible. Values around 80 to 85 still look fine for photos and cut the file noticeably. Below 70 the blockiness starts to show on edges and text, and going higher than 92 mostly just makes a bigger file that faithfully stores the WebP's own artefacts. If the target is an upload form with a size cap, pick the lowest value that gets under the cap and looks acceptable in the preview.
What happens to transparent areas and animation?
JPG has no alpha channel, so transparent regions have to become some colour. The tool flattens the image onto white before encoding, which is what a logo or product cut-out usually wants on a page or in a document. If you need the transparency kept, for stickers, logos and product cut-outs, use WebP to PNG instead, which keeps the transparency. Animated WebP files are decoded as a still: only the first frame ends up in the JPG. Very large images are capped at 8192 pixels per side. The JPG is written fresh from pixels, so no EXIF or other metadata from the source is carried over.
Can I just rename the .webp file to .jpg?
No. The extension only tells the operating system which icon to show; the bytes inside are still WebP, and a program that cannot read WebP will fail the moment it opens the file; some check the header and reject it outright. Re-encoding, as this page does, produces a real JPEG that Windows Photos, Outlook, Word, Lightroom and every upload form will accept. If you are doing this for your own website rather than for an upload, you are probably going the wrong direction — see JPG to WebP.