PNG to JPG: smaller files for photos, with transparency handled
Use this PNG to JPG converter when a PNG is too big to email or upload, or when a form, printer or website insists on JPG. Add any number of PNG files, set the JPG quality and the colour that should replace transparent areas, then download the results individually or as a ZIP. The conversion happens inside your browser, so your images never leave your device.
The biggest wins come from photographs that were saved as PNG — screenshots of photos, exports from editing apps, images copied from the web. Because JPG is lossy, those files often shrink to a fraction of their size with no difference you would notice on screen. Job and exam application portals in India, the US and the UK commonly accept only JPG photos and signatures under a size limit; convert here, then fine-tune with the image compressor or the image resizer.
How to use the PNG to JPG Converter
- Add your PNG files by dropping them on the upload area, clicking it to browse, or pasting with Ctrl+V.
- Set Quality. 90 is a safe default for photos; lower values give smaller files with more visible artefacts.
- Pick a Background for transparent areas. White suits documents and most websites; choose black or a brand colour if the image will sit on a dark page.
- Decide whether to keep any EXIF data stored in the PNG — most PNGs have none.
- Check the size change next to each file and in the preview, then download single JPGs or press Download all for a ZIP.
PNG to JPG Converter features
Choose the fill colour
JPG has no alpha channel. Instead of the black background some converters produce, transparent and semi-transparent pixels are blended onto the colour you pick.
Transparency detected per file
If a PNG really has see-through pixels, its row in the list says so, so you know where the background colour was used.
Quality you control
A 1–100 slider sets the JPG compression; every file re-converts as you move it, and the new size appears instantly.
Batch with ZIP download
Convert dozens of PNGs at once and save them as one ZIP, each keeping its original name with a .jpg extension.
Private and free
No sign-up, no watermark and no upload: your browser’s own JPEG encoder does the work.
What changes when a PNG becomes a JPG
PNG keeps every pixel exactly; JPG approximates the picture to save space. JPG converts colours into a brightness channel and two colour channels, usually stores the colour channels at reduced resolution (chroma subsampling), and rounds away fine detail inside 8×8-pixel blocks. On a photo this is almost invisible. On crisp text, thin lines and flat colour it shows up as faint halos and smudged edges — the reason logos and screenshots of text are better kept as PNG, or converted to WebP, which supports transparency.
Transparency is the other big change. A PNG can mark each pixel as fully or partly see-through; JPG can’t store that at all, so the converter paints those pixels with a solid colour. Soft edges such as shadows and anti-aliased outlines are blended with that colour, which is why choosing a background that matches where the image will be used gives the cleanest result.
Choosing a JPG quality setting
The number is not a percentage of the original quality — it sets how coarsely the encoder rounds away detail, and the same setting gives different sizes for different pictures. Watch the size next to each file as you move the slider.
| Quality | Typical use | What to expect |
|---|---|---|
| 92–100 | Print, archiving, further editing | Largest files; artefacts very hard to see |
| 80–90 | Web pages, email, social media | Good balance; differences rarely visible |
| 60–75 | Thumbnails, strict upload limits | Smaller still; softer detail and some blockiness |
| Below 50 | Only when size is critical | Visible blocks and colour smearing |
PNG or JPG: a quick decision guide
- A photo with no transparency → JPG.
- A logo, icon, sticker or anything with a transparent background → stay with PNG, or use WebP.
- A screenshot of a document, code or a chart → PNG keeps the text sharp.
- An upload form that says “JPG only” → JPG, with a white background unless the form says otherwise.
- Several pages to print or send as one document → PNG to PDF.
PNG to JPG Converter FAQ
How do I convert PNG to JPG without a black background?
Set the Background for transparent areas colour — white by default. Transparent pixels are filled with that colour instead of turning black, which is what happens when transparency is simply thrown away.
Does converting PNG to JPG reduce quality?
Slightly, because JPG is lossy. At quality 85–92 the difference is very hard to spot in photos. Text, line art and flat graphics show artefacts sooner, so keep those as PNG if you can.
How much smaller will my JPG be?
It depends on the picture. Photos saved as PNG often drop to a small fraction of their size, while simple graphics may barely change or even grow. The converter shows the before and after size of every file, so you see the exact result.
Can a JPG keep the transparency from my PNG?
No — JPG cannot store transparency at all. If you need a transparent background, keep the PNG or convert it to WebP, which supports transparency in a smaller file.
Is there a limit on how many PNGs I can convert?
There is no fixed limit. Very large batches are only limited by your device’s memory; convert them in groups if your browser slows down.
Are my PNG files uploaded anywhere?
No. The PNG to JPG conversion runs in your browser using its built-in image encoder, so the files stay on your computer or phone.