PNG to WebP Converter
Free PNG to WebP converter. Make PNG images smaller while keeping their transparency, right in your browser. Nothing is uploaded.
What it does
WebP keeps transparency, like PNG, but stores images far more compactly, so logos, icons and screenshots for the web can shrink a lot without losing their transparent background. At high quality the difference is hard to see; lower the quality for smaller files when the image is a photo.
How to use it
- Choose the images from your device. They are read in the browser and go no further.
- Pick the format to convert to and, for JPG and WebP, the quality.
- Convert, then download each image or all of them together in a ZIP file.
Frequently asked questions
Does WebP keep the transparent background?
Yes. Unlike JPG, WebP supports transparency, so a PNG logo on a transparent background stays transparent after converting.
Can I convert several images at once?
Yes. Choose as many as you like; each one is converted in turn and listed with its size before and after. Download them one by one or all together in a ZIP file.
Will my phone photos come out the right way up?
Yes. Phones often save photos lying on their side with a note saying which way is up. The converter applies that note, so the new file is upright in any program, even those that ignore it.
Can I convert HEIC photos from an iPhone?
Yes, in any browser. Safari opens HEIC by itself; in Chrome, Firefox and Edge the converter first loads a HEIC decoder, about 1.5 MB, the first time you choose a HEIC photo. The photo is still read only in your browser.
Are my images uploaded anywhere?
No. They are read by your browser and the PDF is built in the page itself. There is no upload and nothing is stored, and once the page has loaded it keeps working with the network switched off.
Wikipedia — Image file format
Wikipedia — JPEG
Wikipedia — PNG
Wikipedia — WebP