Why convert JPG to PNG?
Converting a JPG to PNG is about compatibility and protecting the image from further damage, not about making it look better. People usually do it for one of these reasons:
- A site or app asks for PNG. Some design tools, templates, game mods and upload forms accept only PNG files.
- You’ll edit the image many times. Every time a JPG is saved, it’s compressed again and loses a little more detail. Working from a PNG copy breaks that cycle, because PNG is lossless.
- You want to add transparency later. PNG can hold transparent pixels, so it’s the right format to start from before you remove a background in an editor.
What JPG to PNG conversion can’t do
It’s worth being clear about the limits. Converting doesn’t restore detail: any blockiness or blur that JPG compression introduced stays exactly as it is, and the PNG simply preserves it. It doesn’t make anything transparent either. A JPG has no transparency channel, so its background is still solid pixels after conversion.
Expect a bigger file, too. Because PNG keeps every pixel rather than approximating, a typical photo grows several times larger. Each result shows the new dimensions, size and change from the original. If small files are the goal, go the other way with the PNG to JPG converter.
Want a round profile picture with transparent corners? The circle crop tool cuts a photo into a circle and saves it as a PNG, with the area outside the circle left transparent.
JPG vs PNG at a glance
| Feature | JPG | PNG |
|---|---|---|
| Compression | Lossy | Lossless |
| Re-saving | Loses a little detail each time | No loss |
| Transparency | No | Yes |
| Photo file size | Small | Large |
| Good for | Photos, sharing | Editing, graphics, sites that require PNG |