Convert PNG to WebP online
Shrink PNG graphics for the web without losing transparency. WebP keeps the alpha channel and is usually 30–60% smaller — the conversion runs entirely in your browser.
Your files never leave your browser
How to use
- 1
Drop your PNG files into the box, or click to choose them.
- 2
Set the WebP quality — 90% is visually lossless for most graphics.
- 3
Download each WebP or grab them all as a ZIP.
FAQ
Is transparency preserved?
Yes. WebP has a full alpha channel, so transparent PNG areas stay transparent.
Are my files uploaded?
No. The conversion uses the Canvas API in your browser; nothing is sent over the network.
How much smaller will the files be?
Typically 30–60% smaller than the PNG, more for photos, less for flat graphics that PNG already compresses well.
Which browsers open WebP?
All current browsers: Chrome, Firefox, Safari 14+, Edge and Opera.
Can I convert several files at once?
Yes. Drop as many as you like and download them together as a ZIP.