Convert PNG images to JPG locally - smaller files for photos and quick sharing, no upload.
Running locally on your device ...
0%
Your files never left your device
No. Everything runs in your browser - your file never leaves your device. How this is verifiable
PNG files are often needlessly large for photos. JPG cuts the file size substantially and is ideal for photos, email attachments and websites - with barely any visible difference.
The image is painted onto a local canvas and exported as JPG; transparency is filled with white. Nothing is uploaded.
JPG uses lossy compression that deliberately removes image detail the human eye barely notices - which often shrinks photo files to a fraction of the PNG size. For a holiday photo that is ideal; for a line drawing or a screenshot with text it is not, because JPG creates visible halos around sharp edges. You set the right trade-off between size and sharpness with the quality slider.
| Input formats | PNG |
|---|---|
| Output format | JPG |
| Batch processing | Yes |
| Processing | Locally in your browser (JavaScript) |
| File upload | None |
Limitations: JPG is lossy and stores no transparency (transparent areas become white). For graphics with sharp edges, PNG remains better.
For photos often 60-80% smaller, depending on the quality setting.
Yes. JPG has no alpha channel, so every transparent area is filled with a solid colour. White is the preset, but the Background option lets you choose a different fill colour, for example so a logo matches the background it will sit on later.
No, everything runs locally in the browser.
For photos, 0.8 to 0.9 is a good compromise between file size and sharpness. Only below that do the typical block artefacts at edges become clearly visible.
Yes, download individually or as a ZIP.