Best for photos, email, and lighter sharing
If the file does not need alpha transparency anymore, JPG is often easier to send, easier to upload, and lighter to deliver on the web.
PNG to JPGConvert PNG to JPG,
Convert PNG to JPG,
when transparency is not needed
Use a lighter delivery format for web and email when the image no longer needs PNG transparency, without uploading the original first.
Custom · JPEG · 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 JPG when the image no longer needs transparency
This is useful when the image is acting more like a photo or simple delivery asset and PNG transparency is no longer part of the job.
Keep PNG if transparency still matters
Do not force this conversion on logos, UI assets, or graphics that rely on clean transparent edges. In those cases, PNG usually remains the safer format.
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.