Images
Convert PNG to WebP
Upload a PNG and download a WebP — often smaller for web use.
🔒 Your file stays on this device — processing runs in your browser.
Save and continue on the desktop
Download or copy your result here first. Continue in nopa to save to Files or use more features.
- Convert images between JPG, PNG, and WebP in your browser
- Results saved to Files automatically
- Every tool in one place — no new tabs
After you download — continue on the desktop for Files or the full app.
What Convert PNG to WebP can do
How to use
Choose a PNG; the output is set to WebP. One control matters — the quality slider, at 92% by default. The WebP is written by your browser’s own encoder in lossy mode, so even 100% is not a pixel-exact copy of the PNG. Leave it at 92 unless you are compressing a screenshot with small text, where pushing it higher helps.
When to choose this format
WebP often gives smaller file sizes than PNG for web use.
What actually happens to the file
A photograph that was sitting in a PNG usually collapses — several megabytes down to a few hundred KB — because PNG was the wrong container for it in the first place. Screenshots, logos and flat interface graphics shed more like a quarter to a half, and not for free: lossy WebP softens the hard edges between flat colours. The result line shows both sizes, so compare them and check small text at 100% before you commit.
Where WebP is safe to use
On the web, everywhere — every browser still receiving updates decodes WebP, and Safari has since 2020. Off the web it is patchier: Windows 10 and 11 preview it in Explorer and Photos, but older desktop software, some print workflows and plenty of upload forms still reject the extension. For a site you control, WebP is the right answer; for a person or a form, send the PNG.
Limitations
Very old browsers may not display WebP.
Your files stay on your device
While you work, files are handled in your browser on this device — not sent off for processing.
More image tools
Questions
Does WebP keep transparency?
Yes — WebP supports transparency, so transparent areas of your PNG stay transparent.
Can I convert a set of site images together?
That is what the desktop converter is for: up to 30 files to WebP in one pass, downloaded as a single ZIP. The quality slider there is shared by the whole batch, so set it once for images that belong together.
Which formats are supported?
This page converts PNG to WebP. Other pairs — JPG, PNG, WebP, AVIF, HEIC, SVG — each have their own tool, gathered in the related tools on this page.