Free Online JPG to PNG

1. Upload a JPG image.
2. The tool decodes it and re-encodes a lossless PNG automatically.
3. Preview the PNG and check its size.
4. Use the PNG for further editing that you don't want to degrade.
5. Click Download PNG to save it.

JPEG is a lossy format: every save discards a little detail, and those artifacts accumulate if you re-edit and re-save repeatedly. PNG is lossless — once you convert, the pixels are frozen exactly as they are, so subsequent crops, resizes, or annotations won't degrade further.

Converting JPEG to PNG cannot recover detail that the original JPEG compression already threw away; it simply stops the bleeding. PNG also adds an alpha channel, which is useful if you plan to cut out a background or composite the image later. The trade-off is size: PNG files of photographs are usually larger than the source JPEG.

The tool decodes your JPEG into an HTML canvas and re-encodes it as PNG entirely in the browser using the Canvas API. The image never touches a server, so private photos stay on your device.