Convert PNG to WebP Online — No Upload, No Watermark
WebP is 25–35 percent smaller than PNG at equal visual quality and supports transparency. Use it to shrink website asset weight without losing crispness.
Drop image (PNG/JPG/WebP/AVIF/HEIC)
Up to 50 MB
Where PNG files come from
The usual reason is page weight. A site full of PNG screenshots or graphics is heavy, and WebP cuts that substantially while keeping transparency.
What changes when you convert PNG to WebP
| Encoding | PNG re-encoded to WebP |
|---|---|
| Transparency | Preserved |
| File size | Typically 25 to 35 percent smaller than the PNG |
Worth knowing first
WebP has both a lossy and a lossless mode. Lossy is the default and is the right choice for photographs, but it softens the crisp edges in screenshots and diagrams. Check text-heavy images at full size before publishing them.
FAQ
Is WebP safe to use on a website now?
Yes. Every current browser supports it, including Safari since 2020. Keeping a JPEG or PNG fallback in a picture element costs nothing and covers the long tail.
Will my screenshots still look sharp?
Mostly, but check them. Lossy compression of any kind is least kind to hard edges and small text, which is exactly what screenshots are made of. If you see softening, keep those particular images as PNG.
Does transparency survive?
Yes, WebP carries an alpha channel, which is why it is a genuine replacement for PNG rather than only for JPEG.
Is this PNG to WebP converter free, with no upload?
Yes. The image is decoded and re-encoded in your browser using a Canvas + Wasm pipeline — it never uploads. No signup, no watermark.