You saved an image from a website and ended up with a .webp file your photo editor won’t open. WebP is everywhere on the modern web — here’s what it is, why sites use it, and how to turn it into a format everything understands.
What is WebP?
WebP is an image format created by Google to make web images smaller. It does two useful things at once:
- Compresses photos more efficiently than JPG (smaller files at similar quality).
- Supports transparency and animation, like PNG and GIF.
Because smaller images mean faster pages, most websites now serve WebP to browsers that support it — which is nearly all of them today. That’s why images you save from the web increasingly arrive as .webp.
The compatibility catch
WebP is great on the web, but the moment you pull a file out of the browser it can get awkward:
- Some older photo editors, office apps, and phones can’t open
.webp. - A few upload forms only accept JPG or PNG.
- Design and print workflows often expect a traditional format.
When you hit one of those walls, convert.
How to convert WebP to JPG or PNG
Both run entirely in your browser — no upload, no sign-up:
- WebP to JPG — best for photos and anywhere small size or broad compatibility matters.
- WebP to PNG — best when you need a lossless copy or to keep a transparent background.
Drop the file in, and the converted image downloads straight away. Have a folder of them? Convert the whole batch at once and get a ZIP back.
Converting to WebP to speed up a site
If you run a website, going the other direction is where WebP earns its keep. Convert your PNG to WebP or JPG to WebP to cut image weight — often 25–35% smaller than JPG — and pages load faster. Keep a JPG or PNG fallback only if you must support very old software.
WebP vs JPG vs PNG, in one line
- Photo for the web, size matters most → WebP (or JPG for maximum compatibility).
- Logo, screenshot, or transparency → WebP or PNG.
- Must open anywhere, no exceptions → JPG.
For the deeper PNG-versus-JPG trade-off, see PNG vs JPG.
The bottom line
WebP is a genuinely better format for the web — smaller, with transparency — that simply isn’t supported by every app yet. When something won’t open your .webp, convert it to JPG or PNG in your browser and keep moving.