Convert / PNG to JPG
Convert PNG to JPG Online
Turn heavy PNG files into compact JPG photos in your browser. No upload, no daily limit, and the conversion is instant.
Why Convert PNG to JPG?
Much smaller photos
A photographic PNG converted to JPG typically drops 70 to 90%. A 9MB screenshot-quality photo lands near 1MB.
Accepted everywhere
Photo printers, older scanners, camera rolls and legacy document tools all take JPG without complaint.
Fits attachment limits
Most mail servers cap attachments around 25MB. JPG keeps a batch of photos comfortably under it.
Runs in your browser
The conversion happens on your device. Nothing is uploaded and it does not consume your daily server quota.
PNG vs JPG, measured
The saving here is large enough to be worth the tradeoff for photographs, and the tradeoff is real: JPG has no alpha channel, so anything transparent is flattened onto white. For screenshots and graphics the picture is different, and WEBP usually beats both.
| Measure | PNG | JPG |
|---|---|---|
| Photograph | 11,913 KB | 983 KB |
| Saving against the PNG | -- | 92% smaller |
| Screenshot with transparency | 195 KB | 95 KB |
| Transparency | Yes | Flattened to white |
| Degrades on every re-save | No | Yes |
JPG encoded with mozjpeg at quality 90. Measured on one 3840 x 2160 (8.3 MP) photograph, decoded once and then encoded into each format from that same master, so neither format inherits the other's compression artifacts. Your own files will land on different numbers; the direction and rough scale of the gap is what carries over. If the source is a screenshot or a logo rather than a photo, consider WEBP instead: it keeps transparency and came out smaller than both on our screenshot test.
Questions
What happens to transparent areas?
JPG has no alpha channel, so transparent pixels are filled with white before encoding. Without that they would come out black, which is what most converters get wrong.
How much quality do I lose?
The JPG is written at quality 90 through mozjpeg, where the difference is negligible on a first conversion. Maximum quality was the old setting and it mostly bought bytes: on a 36 megapixel photograph it produced a 14.7 MB file against 886 KB at quality 90, for a difference measurement can see and you cannot. Repeatedly converting back and forth is what degrades an image.
Should I convert a logo or icon to JPG?
No. Flat graphics with hard edges get visible halos in JPG and lose transparency. Keep those as PNG, or use WebP if you need them smaller.
Is my file uploaded to a server?
No. PNG to JPG runs entirely in your browser, so the file stays on your device and the conversion is not rate limited.
Can I convert several PNGs at once?
Yes. Add up to 10 files per batch and download them individually or together as a ZIP.
This one never leaves your device
Your browser does this conversion itself, with no upload and nothing counted against the daily limit. Close the tab mid-way and the file was never anywhere but your machine.
What the privacy policy saysFurther reading
Explainer9 minWhat a converter keeps, strips, and quietly rewritesEvery image carries a second file inside it: location, camera, colour space, which way is up. Conversion treats each one differently, and only one of them is guesswork.Explainer8 minPNG compression is lossless, so why does compressing a PNG lose somethingTwo different operations share one button. One rearranges bytes and changes nothing. The other throws away colours, and on a photograph it barely saves anything either.Shrink your PNGs
Convert to JPG in your browser and cut the file size.