PNG to JPG
Convert PNG to JPG with quality control and a chosen background for transparency. Process your image locally and compare the result.
Free · No account required · Browser-basedDrop your image here
One small step to your next great image.
PNG · Up to 25 MiB · 24 megapixels · 10,000 px per sideLimits help protect your browser’s memory.
Local processing. Images selected for this tool are processed in your browser and are not uploaded to 4ool servers. Learn more
How it works
Choose a PNG image.
Set JPG quality and choose white, black or a custom background for transparent areas.
Create a result and check its edges and background before downloading.
JPEG does not support transparency
PNG can contain fully transparent or partly transparent pixels. JPG cannot. When creating a JPG, this tool first places the PNG over a solid background, then encodes the combined image.
White is the default background. Choose black or a custom color when that better suits the final destination. Transparent edges, shadows and antialiased lettering blend with the chosen color, so inspect them in the result preview.
From lossless pixels to a lossy photograph format
PNG compression preserves its pixel data losslessly. JPEG uses lossy compression and is often a practical format for photographs or opaque images required by an upload form.
Sharp text, icons and flat-color graphics can develop visible halos or block artifacts in JPG. If those details matter more than compatibility, keeping the PNG or trying PNG to WebP may be preferable.
Find a workable quality setting
A lower quality setting usually makes a smaller JPG but can discard more detail. A higher setting usually uses more bytes. Neither guarantees that the output will be smaller than your PNG.
The source dimensions remain unchanged. A very large screenshot may benefit more from sensible resizing than from aggressive JPEG compression that makes its text difficult to read.
Keep a transparent original
After transparent areas have been flattened into a JPG background, the downloaded file no longer contains those transparent pixels. Converting that JPG back to PNG will not restore them.
Keep the original PNG if you expect to place it over different backgrounds later. The conversion is performed in your browser; selected image files are not uploaded to 4ool servers.
Frequently asked questions
What happens to the transparent background?
It is composited over your selected solid color before the JPG is created. White is the default.
Can I make the JPG transparent?
No. JPEG does not support transparency. Use PNG or WebP if transparent pixels are required.
Why does small text look different?
JPEG is lossy and can introduce artifacts around sharp edges. Try a higher quality setting, or keep a PNG when crisp text is the priority.
Will converting the JPG back to PNG restore transparency?
No. Flattening replaces transparent areas with the background color. Keep the source PNG to preserve its transparency.