Why WEBP instead of PNG
WEBP is the image format Google designed for faster web pages. It keeps transparency like PNG does, and according to Google a lossy WEBP is often 25 to 34 percent smaller than a comparable JPG, with lossless WEBP about a quarter smaller than PNG.
When to convert PNG to WEBP
Converting makes sense for images going onto a website or an online shop, where smaller files mean faster pages and better scores in speed tests. Keep the original PNG as your master copy, since WEBP is not accepted by every program yet.
How to convert PNG to WEBP
- Drop your PNG files onto the box above.
- Pick a quality. High is a good balance for photos and graphics.
- Press Convert to WEBP and download each file or the zip.
Nothing is uploaded. The conversion runs inside your own browser, so your files never touch a server and there is no queue, no size cap and no sign up.
PNG to WEBP questions
Does the transparency survive?
Yes. WEBP supports an alpha channel, so transparent areas stay transparent.
Does it work on iPhone and Safari?
Yes. Safari cannot create WEBP files on its own, so on Safari the page loads a small WEBP encoder the first time you convert. It still runs on your device and nothing is uploaded.
Will every website accept WEBP?
All current browsers display it and most website builders accept it. A few older platforms and email clients still expect PNG or JPG.