PNG to WebP Converter: Free & Private
You want PNG's transparency without PNG's file size. Convert it here, in your browser, with nothing uploaded anywhere.
Why convert PNG to WebP?
This is the conversion PNG users have wanted for twenty years. WebP supports a full 8-bit alpha channel like PNG, but compresses the actual image far better, lossless WebP alone typically saves 25%, and lossy WebP with transparency intact can cut a large PNG by 80% or more. Logos, UI assets, product cut-outs and sticker graphics all keep their transparent edges.
The catch worth knowing about
Lossy WebP can soften the anti-aliased pixels at the boundary of a transparent region, which shows up as a faint halo on very hard-edged graphics. If you spot it, raise the quality, the edge is where the artefacts land first.
One tip before you start
For flat-colour graphics and icons, try lossless WebP first: it usually beats PNG outright with no trade-off at all.
PNG vs WebP, quick comparison
| Property | PNG | WebP |
|---|---|---|
| Best for | Lossless format with transparency support. Larger files but pixel-perfect, ideal for logos, screenshots and graphics. | Google's modern web format. Excellent compression with transparency and animation support. |
| File size | Large for photographs, efficient for flat colour | Roughly 25-35% smaller than JPG |
| Transparency | Yes, full 8-bit alpha | Yes, full 8-bit alpha |
| Where it opens | Universal | Every browser; patchy in desktop and print software |
How to convert PNG to WebP
- Drop your PNG files into the box above (or click to browse).
- Press Convert, it happens instantly on your device.
- Download each converted file, or grab them all as a ZIP.
Frequently asked questions
Why would I convert PNG to WebP?
You want PNG's transparency without PNG's file size. This is the conversion PNG users have wanted for twenty years. WebP supports a full 8-bit alpha channel like PNG, but compresses the actual image far better, lossless WebP alone typically saves 25%, and lossy WebP with transparency intact can cut a large PNG by 80% or more. Logos, UI assets, product cut-outs and sticker graphics all keep their transparent edges.
What should I watch out for when converting PNG to WebP?
Lossy WebP can soften the anti-aliased pixels at the boundary of a transparent region, which shows up as a faint halo on very hard-edged graphics. If you spot it, raise the quality, the edge is where the artefacts land first.
Any tips for getting the best WebP out of a PNG file?
For flat-colour graphics and icons, try lossless WebP first: it usually beats PNG outright with no trade-off at all.
Will I lose quality converting PNG to WebP?
WebP is lossy at the default setting, and at 92% quality the difference is not visible at normal viewing size. What you get back is a file roughly a third smaller than the JPG equivalent.
Do my PNG files get uploaded?
No. The conversion runs on your device, in the browser tab you are reading this in. You can prove it: disconnect from the internet and convert anyway.
Is it free, and how many PNG files can I do at once?
Free, with no sign-up, no watermark and no daily limit. Up to 200 files per batch, downloadable individually or as one ZIP.
Related conversions
WebP is not the only thing a PNG file can become, and PNG is not the only thing that converts to WebP. These run on the same converter, on your device, with the same 200-file batch limit.
Guides
Longer walk-throughs covering PNG and the way this converter handles it.
Related tools
Once your images are converted, these on-device tools can help you prepare them for sharing or upload.