Convert PNG to WebP online for free
Convert PNG images to WebP, keeping transparency at a much smaller size. Free, no sign-up, and without uploading your images to any server.
How to use it
- Choose your PNG images or drag them onto the dashed area. You can add several at once.
- Check that the target format is WebP, which is already selected.
- Click “Convert to WebP” and download each image with its new extension.
Frequently asked questions
Is the transparent background kept?
Yes. WebP supports transparency, so a logo or an icon with a transparent background keeps it.
Is any quality lost?
It is saved at 92% quality, with a compression that discards tiny details. To the naked eye it cannot be told apart from the PNG, but it is not an exact pixel-for-pixel copy.
How much smaller is the file?
For photographs and illustrations with gradients, a lot: the WebP is commonly less than a quarter of the size. For very simple graphics with few colours, the saving is smaller.
Does it work in Safari and on the iPhone?
Not for creating WebP. Safari displays WebP images but cannot save them, and on the iPhone and iPad the same goes for every browser. The page warns you when you open it: use Chrome, Firefox or Edge on a computer.
Are my images uploaded to a server?
No. The conversion is done in your browser: this tool does not send the images to or store them on any server, and the new file does not keep the original’s metadata, such as the location.
Why convert a PNG to WebP
PNG is the long-standing format for images with transparency, but its files are large. WebP offers the same (a transparent background and clean edges) with considerably smaller files, which is why it is the recommended option for logos, icons, illustrations and screenshots published on a web page.
Keep the original PNG
Keep the PNG as your working file and use the WebP only for publishing. If you have to edit the image later on, always start from the PNG, which has lost nothing, and convert again.
