How to use it
Add your PNG files
Drag one or many PNG pictures onto the page, or choose them from your phone or computer.
Check the format
WebP is already selected as the output format. Choose a quality if you want a smaller or sharper file.
Convert and download
Press Resize images and download each WebP, or all of them as a ZIP.
Why convert PNG to WebP?
PNG keeps every pixel exactly, which is why a photo saved as PNG can be five to ten times bigger than the same photo in a lossy format. WebP gives you a far smaller file and still supports transparent areas.
Before you replace pictures on a website, check that the places where you use them accept WebP. Email programs, some printers and many upload forms still ask for JPG or PNG.
Tips for converting PNG to WebP
- Transparent areas stay transparent in WebP, so logos and cut-out pictures keep their shape.
- A quality of 80 to 90 looks almost the same as the PNG for photos, with a far smaller file.
- Keep the original PNG if you need a lossless copy. WebP at a lower quality removes some fine detail.
- Add many pictures at once and download them together as a ZIP file.
Frequently asked questions
Does WebP keep the transparent background of my PNG?
Yes. Transparent areas of the PNG stay transparent in the WebP file.
How much smaller is a WebP than a PNG?
For photos it is often several times smaller. For simple logos and screenshots the difference is smaller.
Can I convert PNG to WebP on my phone?
Yes. It works in the browser of any modern phone, with no app to install.
Is it free?
Yes. There is no signup, no watermark and no limit on the number of pictures.