Shrink PNGs into WebP files that keep their transparency.
Processed on your device
Your images are processed in your browser and never uploaded.
How do I convert PNG to WebP?
Open PNG to WebP on Tools-Bench, drop in your PNG files and click Convert — WebP is already selected. Keep the quality around 80%, or 90% for screenshots with small text, and compare each file's size before and after. Transparent backgrounds stay transparent. Everything runs in your browser, so no image is uploaded.
About PNG to WebP
WebP is the image format Google built for the web: every current browser shows it, and it's usually far smaller than the same image saved as PNG, which is why page-speed tests recommend it. Unlike JPG, WebP keeps a transparent background, so it can replace PNG logos, icons and screenshots without a white box appearing behind them. This converter opens preset to WebP and re-encodes each PNG in your browser at the quality you choose. Nothing is uploaded, and every file shows its size before and after, so you can see what you saved.
How to use PNG to WebP
1
Add your PNG files
Drop in one PNG or a whole folder's worth. Transparent backgrounds are fine.
2
Keep WebP and set the quality
WebP is preselected. 80% suits photos and illustrations; use 90% or more for screenshots with small text, where lower settings soften the edges.
3
Convert and download
Each image shows its size before and after; download one or all of them.
Frequently asked questions
Does WebP keep the transparent background?
Yes. WebP stores transparency, including the soft, semi-transparent edges of a logo or a shadow, so the converted image sits on any background just as the PNG did. That's the big difference from PNG to JPG, which fills transparent areas with white.
How much smaller will the WebP be?
It depends on the image. Photos and detailed illustrations saved as PNG often shrink to less than half; flat graphics with a few colours shrink less and now and then come out bigger. Every file shows its size before and after, so you can keep the PNG where WebP doesn't win.
Can every browser and app open WebP?
Every current browser can, Safari included since 2020, so WebP is safe on websites. Some older programs, office suites, print shops and upload forms still only take PNG or JPG, so keep your originals for those. Safari can show WebP but not create it, so in Safari this page loads a small WebP encoder the first time you convert.