Convert PNG to JPG

Convert PNG to JPG and the picture is compressed at quality 90, cutting its weight several times over. A transparent background does not survive that step: JPEG stores no alpha channel.

What happens when you convert PNG to JPG

PNG keeps pixels without loss, which makes it heavy. A screen capture easily runs to several megabytes, and mail servers, upload forms and web pages are not fond of files that size.

JPEG takes the other route: part of the data is thrown away and the weight drops sharply. The price shows on hard edges, where faint halos gather around letters and thin lines. On photos with smooth gradients the difference is hard to spot.

• File weight falls several times over while the pixel dimensions stay the same.
• Transparent areas are filled with a solid colour, since JPEG cannot keep them.
• Compression runs at quality 90, and saving again adds further loss.
• The shot is rotated by its orientation tag, so a phone photo will not land sideways.
• Sharp edges and small type get slightly softer.

How to convert PNG to JPG

1. Upload your PNG file on this page.
2. Pick JPG as the output format.
3. Click “Convert”.
4. Download the result.

When weight matters more than transparency

• Mail a batch of images without hitting the attachment limit.
• Upload a photo to a portal or form that caps files at a couple of megabytes.
• Lighten a web page where heavy PNGs slow the load.
• Send shots to a photo lab, where plain JPG is the expected format.

Limits

• File size: up to 50 MB as a guest, up to 100 MB with a free account.
• Compression quality is fixed at 90 and cannot be set by hand.
• An ordinary picture is ready in seconds.

Worth doing beforehand

• Put a background under transparent areas. Place a logo on the colour you want in an editor first, otherwise the fill colour is chosen for you.
• Keep screenshots with small text as PNG. Halos around letters show up most clearly on screen captures.
• For the web, look at WEBP. It holds transparency at a similar weight: that is the PNG to WEBP converter.

Other directions for PNG

• The picture has to travel as a document: use the PNG to PDF converter.
• A logo is needed as curves: the PNG to SVG converter traces it.
• You want the text off the screen capture: the PNG to TXT converter recognises it.

FAQ

Where does the transparent background go?

It becomes a solid fill, because JPEG keeps no transparency. Setting the colour you want in an editor beforehand is the safer route.

How much quality is lost?

Compression runs at quality 90: on a photo the difference is barely visible, on a text-heavy screenshot faint halos appear around letters.

Do the pixel dimensions change?

No, width and height stay as they were. Only the file weight changes.

Can I get the PNG back?

The file can be re-encoded, but the data dropped during compression does not return.