PNG to WebP, in your browser
WebP is the best of both worlds: it compresses far better than PNG and JPG — typically 25–35% smaller at comparable quality — while keeping PNG’s transparency. For websites, that means faster pages and lower bandwidth with no visible quality trade-off. Converting your PNGs to WebP is one of the simplest speed wins for any site.
Mynify converts on your device using the browser’s own WebP encoder — nothing is uploaded.
Why WebP wins for the web
- Smaller files than PNG or JPG at the same quality, so pages load faster.
- Transparency support, unlike JPG — ideal for logos, icons and product cutouts.
- Universally supported in every modern browser and phone.
The one caveat: a few older desktop apps and email clients still don’t read WebP. If the image is destined for the web, WebP is the right call; if it’s going into legacy software, PNG or JPG is safer.
Tips
- Batch your site’s images. Converting a whole folder of PNGs to WebP can cut total page weight dramatically.
- Combine with resize. If the PNG is larger than it displays, resize it first for the smallest possible WebP.
Free, unlimited, no signup, no watermark — converted entirely on your device.