Convert PNG to JPG — Free, No Signup
Convert PNG to JPG without uploading anything. Pick the file, choose JPG as the target, and download. Expect the file to shrink dramatically if the source is a photo, and to gain a white background wherever the PNG was transparent.
How to do it
- Drop your PNG onto the upload box.
- Choose JPEG as the output format.
- Pick a quality — 90 keeps it visually identical. Any transparency becomes white, so flatten deliberately.
- Download the JPG.
What you gain and what you give up
The gain is size and compatibility. A photographic PNG converted to JPEG typically drops by 80 to 90 percent, and JPEG opens in every piece of software ever written. The loss is twofold. Transparency disappears, because JPEG has no alpha channel, and anything transparent is composited onto white. And the encoding becomes lossy, so this is a one-way door — converting back to PNG later restores the extension but not the discarded detail. Keep the PNG if it is your working master.
When PNG to JPG is clearly right
Photographs saved as PNG are the obvious case, and they are extremely common, because most screenshot tools and many export dialogs default to PNG regardless of content. A phone photo saved as PNG can be 15 MB where the JPEG equivalent is 1.5 MB, with no visible difference. Upload forms that reject PNG, print services, and anything being emailed all favour JPEG. If the image is a photo with no transparency and no further editing planned, converting is close to a free win.
When to keep the PNG
Logos, icons, and anything with a transparent background will gain a white box that is very visible against a coloured page. Screenshots of interfaces with small text pick up ringing artefacts around every letter, which makes them look grubby even at high quality. Line art and diagrams with hard edges suffer the same way. And any file you plan to keep editing should stay lossless, because each JPEG save compounds the previous one's damage. For those, WebP is usually the better move — it keeps transparency and is still much smaller than PNG.
Quality on the way out
The converter encodes JPEG at the quality you choose, defaulting to 90, which is deliberately conservative because the source is lossless and there is no prior generation of loss to compound. At 90 the output is visually identical to the PNG for photographic content while still being a fraction of the size. Drop to 80 if you need the file smaller and it is going on the web; below 70 the artefacts start to show on flat areas and gradients.
How the transparency is handled
Transparent pixels are composited onto white, not black. That matches what most people expect when the result is going into a document, an email, or a form. If your PNG has soft edges — a logo with an anti-aliased outline, for instance — those edges blend into white too, which looks correct on a white page and obviously wrong on any other colour. Input is capped at 5 MB and everything runs in your browser.
Frequently asked questions
What happens to transparency when I convert PNG to JPG?
It is flattened onto white. JPEG has no alpha channel, so transparent areas become solid white pixels.
How much smaller will the JPG be?
For photographic content, usually 80 to 90 percent smaller. For flat graphics and screenshots the saving is much less, and JPEG may even lose to PNG.
Can I convert back to PNG afterwards?
You can change the format back, but the detail JPEG discarded is gone permanently. Keep the original PNG if you might need it.
Should I convert a screenshot to JPG?
Usually not. JPEG puts ringing artefacts around text edges. If the screenshot is mostly photographic it is fine; if it is mostly interface, keep PNG or use WebP.
What quality should I choose?
90 is the default and is visually lossless for photos. 80 is fine for web use. Below 70 artefacts become noticeable in flat areas.
Is there a better option than JPG for a logo?
Yes, WebP. It keeps the transparent background and is still far smaller than the original PNG.