PNG to WebP Converter Online Free

How to convert PNG to WebP

1. Drop in your PNG files.
2. Pick a quality level.
3. Convert, then download singly or as a ZIP.

The format that keeps transparency and drops the weight

This is the conversion that solves the oldest problem in web images. Until WebP, a graphic that needed a transparent background had to be a PNG, and a PNG of anything photographic was enormous. WebP supports an alpha channel and lossy compression at the same time, so a transparent product shot or a logo over a photo can finally be both transparent and small.

Savings on PNG source material are often dramatic, and 50 to 80% is common for images with photographic content, because you are moving from lossless to lossy compression while keeping everything that made PNG necessary in the first place.

Keeping it lossless

Push the quality slider to the top and WebP encodes losslessly, which still tends to beat PNG by 20 to 30% on the same image with no pixel changed at all. For icons, diagrams and line art where you cannot accept any degradation, that is the setting to use.

Frequently asked questions

Does transparency really survive?

Yes. The alpha channel is preserved at every quality setting.

Will it work everywhere my PNG worked?

In browsers, yes. Outside them, be careful: some desktop applications and print workflows still do not accept WebP. Keep the PNG for anything leaving the web.

Should I use lossy or lossless?

Lossy for anything photographic, lossless for flat-colour graphics and text. The difference in both size and appearance is much larger than most people expect.

Are my files uploaded?

No. Everything happens on your device.