Convert PNG to WebP Online Free
Convert PNG images to WebP, Google's modern format. WebP keeps the transparency PNG is loved for while producing far smaller files — often 60–80% lighter — so your pages load faster without losing crisp edges.
Your files never leave your device. All processing happens locally in your browser.
Drag & drop your image here
or click to browse
Files never leave your device
Up to 50MB per file
Why use this tool
Much Smaller, Same Transparency
WebP supports an alpha channel just like PNG, so logos and cut-outs stay transparent while the file shrinks dramatically.
100% Private
Files are processed entirely in your browser using the Canvas and WebAssembly APIs. Nothing is ever uploaded to a server.
Instant Results
Because processing is local, there is no upload or download round-trip. Most files are ready in well under a second.
Free Forever
No account, no watermark, no daily limits. Every tool on PixelResize is free to use as often as you like.
How to png to webp
- 1
Upload your PNG image.
- 2
PixelResize encodes it as WebP locally, preserving any transparency.
- 3
Compare the much smaller output size.
- 4
Download the WebP file.