PNG to WebP converter
Turn PNG files into WebP in a couple of taps. Drop in one file or a whole batch; each one converts on your device with its own download button.
To convert PNG to WebP, choose your PNG files above and tap Download next to each result. The conversion runs in your browser, so nothing is uploaded and there's no limit on how many files you convert.
How to convert PNG to WebP
- Choose or drop your PNG files above. You can select many at once.
- Each file converts straight away and shows its new size.
- Tap Download next to each one.
Why convert PNG to WebP
WebP files are much smaller than PNG and JPG at the same visual quality, so websites load faster and use less data. Every modern browser shows WebP. Use it for website images, blogs and online shops. For sending photos to people, JPG is still the safest choice because every app opens it.
Keep them locked, offline
Sealcloak encrypts your photos, videos and files on your phone. No account, no cloud, no internet permission.
Private by design
The tool runs entirely inside this browser tab. Your photo is opened, edited and saved on your own device, and it is never sent to a server, so there is nothing for anyone to keep, scan or leak. No account, no watermark and no limit on how many photos you do. It even keeps working if you switch off your internet after the page has loaded.
PNG vs WebP at a glance
| JPG | PNG | WebP | HEIC | |
|---|---|---|---|---|
| Best for | Photos | Screenshots, logos, text | Websites | iPhone camera |
| Transparency | No | Yes | Yes | Yes |
| File size | Small | Large | Smallest | Small |
| Opens everywhere | Yes | Yes | Most apps | Often not |
Need a smaller file as well? Use compress image after converting.
Photos you never want anyone to see are better kept out of the gallery altogether. See how to hide photos on Android, or how Sealcloak keeps them encrypted on your phone.
Frequently asked questions
Will converting PNG to WebP lose quality?
WebP uses high-quality compression (92%), so the difference is invisible in normal viewing. Converting can't add back detail that the original file didn't have.
Can I convert many files at once?
Yes. Choose or drop as many files as you like. Each converts on your device and gets its own download button.
Does it work on my phone?
Yes. It works in Chrome, Samsung Internet, Firefox and Safari on Android, iPhone, tablets and computers.
Are my files uploaded?
No. The conversion happens in your browser on your own device, and your files are never sent to any server.
Do all browsers support WebP?
Yes. Chrome, Safari, Firefox, Edge and Samsung Internet all display WebP, so it's safe to use on websites.
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