PNG to WebP Converter
Convert PNG images to WebP and choose the quality. Transparency is kept and files stay on your device.
Drag & Drop files here
or click to select files
Best under 50MB / 50 files
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This PNG to WebP converter turns PNG images into WebP files, which are smaller and keep the transparent background. It works as a compressor too: the quality slider decides how much the file shrinks. Add one image or a whole batch, compare the sizes, and download the results together as a ZIP.
PNG and WebP Compared
| PNG | WebP | |
|---|---|---|
| Compression | Lossless only | Lossless or lossy |
| Transparency | Yes | Yes, in both modes |
| File size | Large for photos | Smaller at the same visible quality |
| Animation | Only as APNG | Yes |
| Opens in | Everything | All current browsers, most current software |
PNG stores every pixel exactly, which is right for editing and wasteful for a web page. WebP can do the same, and it can also throw away detail the eye will not miss, which PNG cannot.
Choosing the Quality
- Logos, icons, screenshots and text: keep the setting at 90 or above. Hard edges and flat colours show compression first, as a faint smudge around lines.
- Photographs and product shots with a transparent background: 75 to 85 is usually indistinguishable from the PNG and far smaller.
- When in doubt: convert at two settings and compare them. Each result shows the original size, the new size and the saving.
Why Convert PNG to WebP
The usual reason is page speed. Images are often the heaviest part of a web page, and a smaller image file loads sooner, particularly on a phone connection. Google's PageSpeed Insights flags PNG and JPG images that would be smaller in a modern format. Keep the original PNG as your master copy, because a lossy WebP cannot be turned back into the exact original. To go the other way, use the WebP to PNG Converter, and for photographs with no transparency, JPG to WebP.
How to Convert PNG to WebP
- Add your files: drag the PNG images into the box above or click to choose them.
- Set the quality: move the slider, then press Convert. You can change the setting and convert again as often as you like.
- Download: save a single WebP, or use Download All for a ZIP of the whole batch.
Frequently Asked Questions
Does converting PNG to WebP keep transparency?
Yes. WebP has a full alpha channel in both its lossy and lossless modes, so transparent and semi-transparent areas of the PNG are kept. This is the main reason to choose WebP over JPG for logos, icons and cut-out product photos.
How much smaller is WebP than PNG?
Google, which created WebP, reports that lossless WebP files are 26% smaller than PNGs on average. Lossy WebP goes much further, especially on photographs, at the cost of some detail. The saving on a particular image depends on its content, so check the size shown next to each converted file.
What quality setting should I use?
Start at 90 for logos, screenshots and anything with text or hard edges, where compression artefacts show first. For photographs, 75 to 85 usually looks the same as the original at a much smaller size. Lower the setting until you can see a difference, then go back one step.
Will WebP images work in every browser?
In every current one. Chrome, Firefox, Edge and Safari all display WebP, and Safari has done so since version 14 in 2020. Only very old browsers and some older desktop software cannot open the format.
How do I save a PNG as WebP in Photoshop?
Recent versions of Photoshop support WebP directly. Open the PNG, choose File, then Save a Copy, and pick WebP from the format list. A dialog then lets you choose lossless or lossy and set the quality. Older versions need Google's WebPShop plug-in.
Are my images uploaded?
No. The conversion is done by your browser on your own device, and the files are not sent to a server.