PNG to WebP — batch conversion with transparency
Convert static PNGs to WebP with a quality control, output previews and ZIP download. Files are processed on your device.
Convert in your browser · No sign-up
Up to 20 static PNGs · 20 MB and 24 megapixels each · 100 MB total
How to use
- Choose the supported files from your device.
- Choose quality, convert, and inspect transparent edges in the preview.
- Run the conversion, check the result, then download it.
Example
A 1200 × 800 PNG becomes a 1200 × 800 WebP without changing its dimensions.
Details and limitations
WebP uses lossy encoding here, even at quality 100. Transparent pixels are supported; animated PNG is not.
Conversion runs locally in your browser. This tool does not upload the chosen files.
FAQ
Will WebP always be smaller?
No. Small or highly optimized PNGs can produce larger WebP files. Compare the resulting sizes.
Are my files uploaded?
Conversion runs locally in your browser. This tool does not upload the chosen files.