Good for web images that are still too heavy as PNG
If the asset is meant for a website, landing page, or blog post, WebP often gives a lighter result without forcing you into a completely different workflow.
PNG to WebPConvert PNG to WebP,
Convert PNG to WebP,
for lighter web delivery
Use a modern web format for assets that should ship smaller, while keeping the conversion local and upload-free.
Custom · WebP · Smart optimization (recommended) · Original resolution
Format
Quality preference
Resize
Drag & drop JPEG, PNG, WebP, or AVIF images
You can also click to choose files.
Supported formats: JPEG, PNG, WebP, AVIF.
Drop entire folders at once or seamlessly process ZIP archives with Pro.
JPEG, PNG, WebP, AVIF
Free 10 MB · Pro JPG/JPEG, WebP, AVIF 100 MB · PNG 40 MB
Some formats may produce different results depending on your browser environment.
Real Comparison
A real photo, compressed on-device.
This desert photo was compressed in KaruImg using the same in-browser process you get on the homepage. Drag the slider to compare the detail with the smaller file size.
Source size
5.3 MB
Result size
839 KB
Size reduced
84.5%
Sample photo licensed via Unsplash
Original
KaruImg result
What to know
Convert PNG to WebP when the asset should ship lighter on the web
This is most useful when the asset is headed to the web and you want a lighter delivery format than PNG.
Keep PNG when clean transparency is still critical
Some logos, interface assets, and sharp-edged graphics still work better as PNG. Use WebP when delivery weight matters more than keeping the original PNG behavior unchanged.
Why KaruImg
Smart compression, strictly private by design.
Drop in your images and let KaruImg lighten them in your browser. If there is no real size win, it safely keeps the original.
Processed right on your device
Fast and safe processing directly inside your browser without any installations or server uploads. Your files never leave your device.
Smartly keep the original
If there’s no size benefit, we keep the original—without degrading quality.
Automatic optimization flow
No complicated quality sliders. We analyze each file and automatically choose the best compression settings.