What this tool does
Choose a PNG, set the quality, and download a JPG. It is the usual way to shrink a photographic PNG, such as a screenshot of a photo or an exported image.
How to use it
- Choose a PNG file, or drop it on the page. A preview and its size appear.
- Set the quality with the slider. It starts at 85%.
- Press Convert to JPG.
- Compare the input and output sizes the page shows, then press Download JPG.
Where it runs
The work happens in your browser, using the canvas feature that every current browser has. The image is not uploaded and nothing is stored on this site’s server.
Transparency becomes white
JPG can’t hold transparency. Transparent parts of your PNG are filled with white, and there is no option to choose another colour. If you plan to place the image on a coloured or dark background, you will see a white box, so keep the PNG or use PNG to WebP, which keeps transparency.
When it’s a good idea
- Photographs saved as PNG. A JPG at quality 80 to 85 is often a fraction of the size with no visible difference.
- Upload fields and email that prefer JPG or limit file size.
When it isn’t
- Screenshots with text, logos and line art. JPEG creates fuzzy halos around sharp edges, and the PNG will usually look cleaner and may even be smaller.
- Images you’ll edit further. Every JPG save loses a little more.
For photos, 80 to 90 is a safe quality range. Below about 60, blocky artifacts become visible in smooth areas. Check at 100% zoom.
Limits
- JPG can’t hold transparency. Transparent areas are filled with white. There is no option to choose another colour.
- Metadata such as EXIF, location and colour profiles is not carried over, because the image is redrawn.
- Browsers apply a photo’s EXIF rotation when they open it, so a phone photo normally comes out the right way up.
- An animated image becomes a single still frame.
- The page states a 20 MB maximum but doesn’t check it in the browser. Very large images depend on your device’s memory, and the browser can fail on huge ones.
Why did my transparent PNG get a white background?
JPG can’t be transparent, so the tool fills transparent areas with white.
Will text stay sharp?
JPG can blur sharp edges. For text or line art, keep the PNG or use a high quality setting.
What quality should I use for photos?
Around 80 to 90 is a good balance.
Does the file get smaller?
For photos, usually much smaller. For simple graphics it can get bigger.
Is my PNG uploaded?
No. The conversion runs in your browser.