DocomintJPG zu PNG
Wandle JPG-Bilder in PNG um, komplett in deinem Browser.
Drop your images here
or choose a file from your device
What is a JPG zu PNG?
PNG's lossless compression preserves transparency and exact pixel detail that JPG's lossy compression can't — needed when a JPG photo has to become a logo layer with a transparent background, or when repeated edits would otherwise compound JPG's generation loss.
How to use the JPG zu PNG
- Add one or more JPG images
- Each one is converted to PNG, on your device
- Download the PNG (or a ZIP for multiple images)
Example
Converting a 1200x800 JPG photo to PNG keeps every pixel identical to the source, typically at 3-5x the file size of the original JPG since PNG doesn't discard data.
JPG vs PNG vs WebP
| JPG | PNG | WebP | |
|---|---|---|---|
| Compression | Lossy | Lossless | Lossy or lossless |
| Transparency | No | Yes | Yes |
| Typical file size | Small | Large | Smallest |
| Best for | Photos | Graphics, logos, screenshots | Web images |
Frequently asked questions
Is my image uploaded anywhere?
No — JPG zu PNG runs entirely in your browser using JavaScript/WebAssembly. Your image is never sent to a server.
Is there a file size limit?
Free use covers files up to 100MB per file; signing up for Pro raises that to 500MB.
Does converting from JPG to PNG add a transparent background?
No — JPG has no transparency to begin with, so the converted PNG is fully opaque, just like the source. To add transparency you'd need to separately remove the background.
Will converting to PNG improve the image quality?
No — PNG can't add back detail a JPG already lost to compression; it only stops further quality loss from here on. If the source JPG has visible compression artifacts, they'll still be there in the PNG.