Convert JPG to PNG
Drop a JPG and download it as a PNG, converted in your browser.
Your workspace Convert · Preview · DownloadPrivate by default
Runs on this device. The first use downloads a 56 to 135 MB model once. Nothing is uploaded.
This browser did not name the format it opened.
Every pixel kept exactly. PNG has no quality setting; fewer colours is how it gets smaller.
- Open a photoDrop, paste or choose one.
- Set the sizeType it, or pick a common size.
- DownloadSee the file size before you save.
Processed on your deviceNo watermark. No signup.
The pixels are copied across exactly as they are, so the file usually grows and the picture does not improve. Nothing is uploaded, no account is needed, and the width and height stay the same.
Why make this conversion?
PNG is what a lot of software asks for when it wants a lossless file: a design tool, a print shop, or a form that will not take JPEG.
Converting satisfies that requirement, but it cannot undo compression that has already happened, so use the original if one exists.
How much does the file size change?
We saved the same seven images, five photographs and two graphics, as JPEG and as PNG with this converter, at its default quality of 82. Only the format changed.
PNG has no quality setting: it keeps every pixel, which is why its files are so large.
| Image | JPEG (KB) | PNG (KB) | Change |
|---|---|---|---|
| Waterfall in forest | 1,168 | 12,754 | +992% |
| Cityscape with signage | 1,755 | 21,421 | +1121% |
| Sunflower, blurred background | 453 | 7,588 | +1573% |
| Mountain range and sky | 709 | 10,177 | +1335% |
| Waterfall, close crop | 341 | 2,699 | +692% |
| Screenshot of a web page | 69 | 131 | +91% |
| Share card with text | 43 | 109 | +156% |
On the five photographs, PNG came out 8 to 17 times the size of JPEG.
How close each format stayed to the original is in JPG vs PNG vs WebP vs AVIF, measured.
A conversion never improves a picture
Changing the format changes how the pixels are stored, not what they show. Detail an earlier save discarded is gone, and no later format can work out what used to be there.
If the original file still exists, convert from that instead.
Where it does matter is the order of the work. Resize and crop first, convert last.
Every save to a lossy format costs a little quality, so the fewer round trips a file makes, the better it looks when you are finished.
What happens to your photo?
Your selected photo is processed in your browser, without an image upload to a server. The page may download code and codecs needed for editing.
Save your result before closing the tab; unsaved edits are kept in memory rather than in an online account.
Common questions
Does converting to PNG make my JPG sharper?
No. PNG stores exactly the pixels it is handed, and those pixels have already been through JPEG compression. The result is a larger file holding the same detail, blocks and all.
Nothing about the picture improves; only the container changes.
Why is the PNG so much bigger than the JPG?
Because PNG never throws anything away. JPEG reaches a small file by discarding detail your eye is unlikely to miss, while PNG describes every pixel exactly.
On a photograph that difference is often several times the size.
Last updated: