Drop a PNG above and download a WebP. For photos and most graphics the WebP is much smaller than the PNG, and unlike JPG it keeps a transparent background. Nothing is uploaded: the page loads the converter once, then the file is read and written by your own browser.
Why convert PNG to WEBP?
Image weight is usually the largest part of a web page. WebP gives most of JPG’s size savings while keeping PNG’s transparency, and every current browser (Chrome, Edge, Firefox, Safari) displays it.
How it works
1. Drop the PNG.
2. WebP is selected; the quality slider defaults to 90%. For photos 75–85% saves more; for text-heavy graphics stay at 90% or above.
3. Download the WebP, encoded with libwebp (the Google encoder) running in your browser. The page shows the size before and after.
PNG vs WEBP
PNG: lossless, transparency, large for photos, universal support.
WebP: lossy (with a quality setting) or lossless, transparency, animation; much smaller for photos and usually smaller for graphics too.
For websites, WebP is the practical default. Keep PNG where a tool or printer requires it or where you need a lossless master.
Quality notes
Transparency is kept. At high quality, photos look identical; flat graphics with thin text can show slight softening at lower settings, so compare before downloading. Very small icons may not shrink much.
Common use cases
Speeding up website images and product photos; shrinking transparent logos and illustrations; reducing app or game asset sizes.
Frequently asked questions
Is transparency kept?＋
Yes. WebP supports an alpha channel.
Do all browsers display WebP?＋
Yes, every current version of Chrome, Edge, Firefox and Safari does. Some older desktop software does not.
Which quality should I use?＋
80–90% for most images. Check sharp text at the preview: if edges look soft, raise the quality.
WebP or AVIF?＋
AVIF is usually smaller still, but encodes more slowly and is supported by fewer apps. WebP is the safer choice for broad compatibility.