Convert PNG to JPG
Turn PNG files into smaller, universally compatible JPGs. Transparent areas become white, and your images never leave your device.
Files never leave your deviceNeed more settings? Open the full Convert Image tool.
How to convert PNG to JPG
- Drop one or more PNG files onto the box above, or paste a screenshot straight from your clipboard.
- Convert to is already set to JPG. Adjust the Quality slider if you want a smaller or sharper file.
- Press Convert to JPG. Each file shows its new size as soon as it is done.
- Download the files one by one, or press Download all as ZIP for the whole batch.
The new files keep their original names with a .jpg extension, so screenshot.png becomes screenshot.jpg.
When JPG is the better choice
PNG is perfect for logos, icons and anything you will edit again, but it is the wrong format for photographs. A phone photo or a screenshot of a video saved as PNG can easily be 5 to 10 MB, because PNG has to store every pixel exactly. As a JPG the same picture is often under 1 MB and looks the same on screen.
Convert to JPG when:
- an upload form, marketplace or email service rejects your PNG for being too large;
- a website, printer or older app only accepts JPG;
- you are sending lots of screenshots or photos and want the batch to be small.
If you need the file to be under a specific size, such as 100 KB for an application form, use compress image to 100 KB instead. It finds the right quality for you.
What happens to transparency
JPG has no alpha channel. Transparent parts of a PNG are filled with white during conversion, which suits documents and most photos. For a logo or sticker that has to stay transparent, convert to WebP with the image converter instead: WebP keeps the transparency and is still far smaller than PNG.
Your images stay on your device
The conversion runs in your browser with the MozJPEG encoder, compiled to WebAssembly. Your PNG is decoded and re-encoded in a background thread on your own computer or phone, so nothing is uploaded and the page stays responsive even for a large batch. After your first visit the converter also works offline.
Frequently asked questions
Why is my JPG so much smaller than the PNG?
PNG stores every pixel exactly, which suits graphics but makes photos and screenshots of photos very large. JPG discards detail the eye barely notices, so the same picture is often five to ten times smaller.
What happens to the transparent background?
JPG cannot store transparency, so transparent pixels are filled with white. If you need to keep the transparency, convert to WebP instead, which supports it and is still small.
Which quality should I choose?
The default of 90 looks identical to the original for almost every image. Drop to 75 to 80 for web pages and email; go above 95 only if you plan to edit the file again.
Are my files uploaded anywhere? How can I check?
No. The PNG to JPG converter runs entirely in your browser using JavaScript and WebAssembly, so your files never leave your device. You can verify it: open your browser's DevTools (F12, or Cmd+Option+I on a Mac), switch to the Network tab, tick "Preserve log", clear the list and process a file. You will only see requests for this site's own static files, never one that carries your data. You can also turn on "Offline" in the Network tab (or disconnect from the internet) once the page has loaded, and the tool keeps working.
Does it work offline?
Yes. After your first visit a service worker saves the tool to your device, so it opens and works without a connection. Only advertising needs the internet; the processing never does.