PNG to WebP
Convert a PNG image to WebP in one click. The conversion runs on your device — nothing is uploaded.
Drop your image here
or click to choose a file — PNG
● Your files are processed locally in your browser and are not uploaded to our servers.
How it works
KadiTools decodes your PNG file in the browser, draws it onto an in-memory canvas and encodes it again as WebP. PNG transparency is preserved when the target supports it.
WebP files are typically 25–35% smaller than JPG or PNG at the same visual quality, which speeds up websites. Every modern browser supports it. Use the quality slider to trade file size against detail: 85–92% is visually identical to the original for most photos.
FAQ
Is my PNG uploaded to a server?
No. The whole conversion happens in your browser using the Canvas API; the file never leaves your device.
Will converting to WebP reduce quality?
WebP is a lossy format, so a little detail is discarded. At 90% quality the difference is very hard to see; raise it to 100% for maximum fidelity.
Is there a size limit?
There's no artificial limit. Very large images (above roughly 50 megapixels) may be slow or fail on phones because of browser memory limits.