How to use PNG to JPG
- Add up to 20 PNG files. Every file in one run shares the same settings.
- Leave Convert to on JPEG, which is where this page opens. The same list still offers PNG and WebP if a file needs one of those instead.
- Enter the color that should replace transparent pixels, and raise the quality if the image has fine detail.
- Select Convert, then download the converted files or the ZIP for a batch. With the default JPEG setting, the files have a .jpg extension.
Example: PNG to JPG
A transparent PNG logo going into a document that will not accept PNG.
Options
- Convert to
- The page opens on JPEG because that is what it is for. The engine behind the page can also write PNG and WebP, so change the list only when a file genuinely needs one of those two.
- Background for JPEG
- The color painted behind transparent pixels before the file is encoded. Use six hex digits such as #ffffff. A value the browser cannot read stops the run with a message instead of producing a file.
- Quality for JPEG and WebP
- 0.9 is the default. Lower values shrink the file and soften detail, which shows first on text, logos and sharp edges.
Supported inputs and limits
Where your input is processed
This tool processes your input in this browser. Your text and files are not uploaded to UseFreeTools. Check this tool's limits for anything it may save on your device.
Where the transparent pixels go
JPEG stores color and no transparency, so a PNG that uses soft or partial transparency cannot be copied across as it stands. Every pixel is blended into the background color first: a fully transparent pixel becomes that color exactly, and a pixel that is half transparent becomes a mix, which is why a soft shadow keeps a faint tint of the background. That blend is not stored in the file, so it cannot be separated again later. Set the background to the color the image will actually sit on, check the corners, the shadow and any anti-aliased text, and keep the PNG whenever the transparency might be needed.
Questions about PNG to JPG
What happens to the transparent parts of my PNG?
They are filled with the background color, white by default, because JPEG has no alpha channel. Choose the color that will sit behind the image where you plan to use it, then look at the edges of the result before you rely on it.
Which background color keeps the edges clean?
Use #ffffff for documents and most office tasks. Match the color of the surrounding page when the artwork will sit on a colored background, and use a dark value for art drawn for a dark interface so the edge does not glow white.
Will the JPG be smaller than the PNG?
Often, but not always. A photograph usually shrinks because JPEG is built for continuous tones, while a flat screenshot or logo can grow at a high quality setting. The result line reports both sizes, so compare them before deleting anything.
Can I convert several PNGs at once?
Yes, up to 20 files in one run. They share one background color and one quality setting. With the default JPEG setting, the batch ZIP holds one JPG per source file.
Does the conversion resize or crop the image?
No. The width and height are kept exactly as they are, and only the way the colors are stored changes. An 800 by 400 PNG becomes an 800 by 400 JPG, so a fixed layout still fits.