A free, private PNG ↔ WebP converter that runs entirely in your browser.
webpng uses modern browser technology (HTML5 Canvas and related APIs) to convert images on your device. Files are not uploaded to any server. This makes it fast and privacy-friendly, especially for images with transparency.
WebPNG is a free, in-browser PNG ↔ WebP converter. Files never leave your device — everything runs locally in your browser for speed and privacy. We don’t require sign-ups or installs, and the tool works on desktop and mobile.
We maintain this site for the community and support it with light advertising. If you have questions or suggestions, contact us at contact@passportinformatics.com.