Convert WebP to JPG
Saved a picture from a website and nothing will open it? Turn the .webp into a real .jpg right here — transparent areas turn white, nothing is uploaded.
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You right-clicked a photo on a web page, chose Save image as, and the file that landed in Downloads ends in .webp. Word 2019 will not insert it, Photoshop 2021 answers "not the right kind of document", and the upload box on the listing or application you were filling out accepts .jpg, .jpeg and .png, full stop. Nothing is wrong with the picture; the format is one that plenty of software outside a browser still refuses.
This page decodes the WebP and writes a real JPEG — FF D8 FF header, full structure — so it passes the checks a renamed file fails. JPG has no transparency, so every see-through pixel is painted white before encoding. On a product shot or a screenshot that changes nothing; on a white logo over a clear background it makes the logo disappear, and WebP to PNG is the page you want instead.
The decoding, the white fill and the JPEG encode all happen in this browser tab, on your own machine; no copy of the picture is sent anywhere. Drop in a single file or a few hundred: the only ceiling is your device's memory, and a batch leaves as a single .zip.
How it works
The format bar opens on JPG, so there are two decisions left: the quality number, and whether white will do wherever the WebP was see-through.
Drop in the .webp files
Pull them out of Downloads, use Choose images, or — if the picture is still open in a tab — right-click it, Copy image, and press Ctrl+V here. The name only decides whether a file gets in the door; the picture itself is decoded from the bytes, so a WebP that a site handed you as photo.jpg converts like any other.
Pick a quality, accept the white
The slider opens at 82, which suits the article images and product photos most .webp downloads are; screenshots, charts and anything with lettering want 90–95. This is also the last moment to change your mind about transparency: the white fill is automatic on JPG, and switching the bar to PNG is the only way to keep a clear background.
Generate, then check the cards
Press Generate images and read the size on each card — usually above the .webp's. Compare lets you slide between source and JPG, which is where a white box around a formerly transparent logo shows up. Download individually, or take the entire queue as one .zip.
Why the upload box takes .jpg and not the .webp you saved
The site served WebP because your browser can display it; the trouble starts when the file has to go somewhere that cannot. Upload fields are the first wall: a validator built on an allowlist of .jpg, .jpeg and .png (sometimes .pdf) disables the button or replies "file type not allowed" before a single byte is sent. Desktop software is the second wall, and there it depends on the version installed.
| Where you open it | Opens .webp? | What happens |
|---|---|---|
| Upload forms with an extension allowlist | Usually no | Typical list: .jpg, .jpeg, .png, .pdf |
| Word, PowerPoint 2019 and older | No | Insert Picture rejects it |
| Word, PowerPoint (Microsoft 365) | Yes | Insert Picture accepts it |
| Photoshop 2021, CS6 and older | No | Needs the WebPShop plug-in |
| Photoshop 23.2 (Feb 2022) and newer | Yes | Native, no plug-in |
| Windows 10 without WebP Image Extensions | No | Blank thumbnail, can't open |
| Windows 11 Photos, Paint, macOS Preview | Yes | Open normally; Paint and Preview also save as JPEG |
Renaming .webp to .jpg changes the name and nothing else
A JPEG starts with the bytes FF D8 FF; a WebP starts with the letters RIFF, a length, then WEBP — open one in Notepad and the letters are right there. Renaming leaves every byte in place, so an older Photoshop still refuses it.
Upload validators split the same way: lax ones check the extension and let a renamed file through broken; strict ones sniff the header and reject it.
This page builds a JPEG from scratch — decode, draw on a canvas, encode — so the output starts with FF D8 FF like a camera photo. EXIF is dropped on the way.
Which .webp downloads come back wrong on white
JPEG stores no alpha channel, so every transparent pixel in the WebP has to become a color before encoding; on this page that color is white, and there is no setting for another. Most .webp downloads are photographs or article images with nothing transparent in them, and the fill touches nothing.
The files it does touch are easy to recognise beforehand. A logo saved from a site's dark header, drawn in white or pale grey on a clear background, comes back as a blank white rectangle. A product cut-out from a store page becomes the product on a white card — right for a white-background listing, wrong for a mock-up. A WhatsApp sticker, a WebP with a transparent outline, gains a white box the shape of the file; a rounded avatar gets square white corners.
If your file is one of those, don't push it through JPG: WebP to PNG keeps the alpha channel, and the result then sits on any background the way it did on the site.
Quality, size, and the limits a form may add
WebP stores photos roughly 25–34% smaller than JPEG at matching quality, so a 300 KB WebP often returns as a 400–450 KB JPG at the default of 82. Pushing the slider to 100 only inflates the file; the detail the WebP discarded is gone, and the JPG never looks sharper than its source.
Two limits to know. The WebP format itself tops out at 16,383 px per side, and this page brings any side longer than 10,000 px down to 10,000 before encoding — rarely relevant to a web download, which seldom passes 3,000 px. If the form caps the file in kilobytes, take the JPG to Compress image to 200 KB or its 100 KB sibling: those pages hunt for the top quality that fits under the cap and shrink the pixels in 15% steps only if no quality does. A pixel-width limit belongs on Resize image; this page has no size fields.
Frequently asked questions
The page showed a .jpg, so why did it download as .webp?
Because the server sent WebP once your browser said it could display it; the name in the page is not what came down the wire, and there is no Chrome setting to change it. For a single picture there is a shortcut: right-click it, choose Copy image, and paste it on this page with Ctrl+V — the clipboard carries the picture itself, not the .webp file, so the extension never comes up.
Will Photoshop 2021 or Word 2016 open the JPG this makes?
Yes. What you download is an ordinary 8-bit JPEG in the JFIF container, the kind a phone camera or a scanner produces, so software from a decade ago opens it; WebPShop, a codec pack or an Office update is never needed.
Windows 11 Paint opens the .webp. Why not just Save as JPEG there?
For one file, do — Paint and macOS Preview both write a JPEG. Paint gives you no say over the quality, and both handle a single file per pass; here a whole folder goes in with one drop, the quality is set once for all of them, and the batch comes back as a .zip.
A designer sent me a lossless .webp. Will the JPG be pixel-exact?
No — JPEG has no lossless mode, so even at 100 the encoder rounds the colors a little. At 95 the difference is invisible on screen and the file is far smaller than the lossless source; if the client needs every pixel intact, WebP to PNG is the lossless route.
Does converting WebP to JPG lose quality?
Some, in principle: the pixels are compressed a second time, this time by the JPEG encoder. At 82 the second pass is hard to spot on a photo; if Compare does show a difference, regenerate at 90 rather than 100, because the last ten points mostly buy file size.
Why is my JPG bigger than the WebP was?
Because WebP compresses more efficiently; 30–50% growth at the same look is normal. When the form's cap is in kilobytes, try the slider at 70–75 first; if that is not enough, Compress image to 200 KB or its 100 KB sibling searches out the quality that lands under the number.
The sticker I saved from WhatsApp moves. Will the JPG?
No. The page draws the first frame on the canvas and the JPEG holds that single still; JPEG has no frames, and no page on this site writes animation. A sticker also has a transparent outline, which lands on white here — WebP to PNG keeps it clear.
I saved this image from a private page. Does it get uploaded to convert it?
No. The browser decodes the WebP and encodes the JPG through its own canvas, on your device. Open the Network panel (F12) while you convert: the page loads its own scripts and ad assets, and no request carries your image.