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PNG to JPG Converter

Shrink heavy PNGs into JPGs. Pick the quality and the colour behind any transparency, all on your device.

Runs entirely in your browser. Nothing you enter is uploaded or stored.

Add PNG imagesDrop PNG files here, or click to browse. They convert as soon as you drop them: no button needed.

Settings

Balanced 92% · Original size · White fill

Also try:WebP to JPG ConverterImage CompressorPlaceholder Image Generator

How to use the PNG to JPG Converter

  1. 1Drop your PNG files onto the box, or click it to browse for them. Add as many as you need.
  2. 2If a picture has a transparent background, choose the colour that should sit behind it. Match the page or slide it's going onto.
  3. 3Set the quality. The default of 92% is a safe starting point; screenshots with small text may need it higher.
  4. 4Compare the before-and-after size on each row, then press Download on the ones you want to keep, or Download all (ZIP) to save the whole batch in one go.

Why people convert PNGs to JPGs

PNG is the format screenshots, exported graphics and many downloaded pictures arrive in, and it’s a good format for what it was designed for: it keeps every pixel exactly, with no quality loss, and it can be transparent. The price is size. A screenshot of a busy web page, or a photograph saved as PNG, can easily be several times larger than the same picture as a JPG. That’s fine until it isn’t: an email that bounces off an attachment limit, an upload form that caps files at a couple of megabytes or only lists JPG, a page that loads slowly because of one oversized image. Converting to JPG is the quickest way to bring the size down.

What changes when you convert

  • Transparency is filled with a colour. JPG has no transparent pixels. The tool paints your chosen colour behind the image first, so anything see-through takes on that colour.
  • Partly transparent pixels blend in. Soft shadows, feathered edges and smooth curves are mixed with the fill colour according to how transparent they were, rather than being cut off abruptly.
  • The image is compressed with loss. A JPG discards fine detail to get smaller. At sensible quality settings on photographs you won’t notice; on crisp text and lines you may.
  • The size usually drops, but not always. Photographs shrink a lot. Flat graphics can stay the same or get bigger. The number on each row is the real result for your file.
  • Embedded extras are left behind. Data stored inside the PNG beyond the picture itself isn’t carried over.

Choosing the fill colour

For a picture that’s completely opaque this doesn’t matter: there’s nothing to fill. It matters as soon as the PNG has a transparent background, a shadow or a soft edge. Think about where the JPG is going and pick the colour that’s already behind it: white for a document or a light web page, a dark shade for a dark slide or a dark-mode layout. If the fill matches its surroundings, the picture blends in as though the background had never been there. If it doesn’t, you’ll get a visible rectangle around it, and a JPG can’t be made see-through again.

Choosing a quality setting

Start at the default of 92%. For photographs headed for a website or an email, going down to 80–85% usually saves a lot of space without any visible change; check the thumbnail on the row before you download. Screenshots and anything with small text or thin lines need a higher setting to stay clean, and at some point the better answer is simply to leave them as PNG. Pushing the slider all the way to 100% almost never looks better than 92–95% and can make the file several times larger, which defeats the reason for converting.

Kept private, on your device

Screenshots have a way of containing things you’d rather not hand to a stranger’s server: a bank page, a private chat, an internal dashboard. This converter never asks you to. Your browser reads the PNG, draws it onto a canvas and writes it back out as a JPG, all inside the tab, with no upload step. You can convert a whole batch without waiting on a queue, and closing the page clears everything.

When to keep it as a PNG

Leave the file as it is if it’s a logo, an icon or an interface screenshot where crisp edges matter; if it needs to stay transparent so it can sit on different backgrounds; or if it’s a working file you’ll edit again, since every save as JPG loses a little more detail. JPG is the right choice for the finished copy of a photograph you’re sending or publishing, and for reducing a heavy image to something that fits where it has to go.

Questions

Why is my PNG so much bigger than a JPG of the same picture?
PNG is lossless: it keeps every pixel exactly, which is ideal for graphics and expensive for photographs, where neighbouring pixels are almost never identical and so don't compress well. JPG is lossy: it throws away detail your eye is unlikely to miss, which is how a photo can shrink to a fraction of its PNG size. Each row shows the exact before-and-after sizes for your file.
What happens to the transparent background?
A JPG can't be transparent, so the tool fills any transparent area with the colour you choose: white by default. Pick the colour of the page, slide or document the picture is going onto, and it will look as though it still has no background there.
What about soft shadows and semi-transparent edges?
Partly transparent pixels (a drop shadow, a feathered edge, an anti-aliased curve) are blended with your fill colour in proportion to how transparent they were. A 50% black shadow over a white fill becomes mid-grey, over a green fill it becomes a darker green. That's why matching the fill colour to where the image will be placed matters more for pictures with shadows than for plain cut-outs.
Will text and sharp edges look worse as a JPG?
Often, yes. JPG compresses in small blocks, and hard edges (the outline of a letter, a thin line, the border of a button) can pick up faint speckling around them. Photographs hide this well; screenshots, diagrams and scanned text show it. If a picture is mostly text or crisp lines, raise the quality, check the thumbnail, or leave it as a PNG.
Can I get the transparency back afterwards?
No. Once the transparent areas have been filled with a colour, that information is gone from the JPG for good. Keep your original PNG if you might need the transparent version again.
Why did my JPG come out bigger than the PNG?
It happens with flat graphics: logos, icons, simple diagrams and screenshots with big areas of one colour. PNG stores those very compactly, and JPG can end up larger while also looking a little fuzzier around the edges. If the row says "larger", the PNG is the better format for that particular image.
Does the JPG carry over hidden information from the PNG?
No. The picture is redrawn from its pixels into a new file, so extra data stored inside the PNG (text notes some screenshot and image-generation tools embed, for example) isn't copied into the JPG. That's useful if you're about to share an image and would rather not pass along what's tucked inside it.
Is my image uploaded anywhere?
No. The conversion happens inside this browser tab using your device's own memory. Nothing is sent to a server, logged, or stored, and closing the tab clears everything.