Convert PNG to JPG
100% private — runs on your device, never uploaded. Works offline once loaded.
Convert PNG images to smaller, universally supported JPG files. Runs entirely in your browser — no uploads.
Why shrink a PNG down to JPG
PNG stores every pixel losslessly, which is exactly why a simple screenshot or a photo exported from a phone camera can end up several megabytes in size. JPG throws away detail the human eye barely notices — through a DCT-based compression algorithm that discards high-frequency color information — and in exchange gets file sizes that are often 60-90% smaller for photographic content.
That size difference matters in practical ways: a product listing page that loads ten PNG photos instead of ten JPGs, a contact form that rejects anything over 2MB, or an email thread where attachments keep bouncing back.
The transparency trade-off
JPG has no concept of an alpha channel, so any transparent area in your PNG — a logo cut out on a clear background, an icon, a sticker — gets filled in with a solid color (usually white) the moment it's converted. If you're converting a design asset rather than a plain photo, check the result before you use it; a logo that looked clean on a dark website background can suddenly show a white box around it.
Where this conversion actually gets used
This isn't just a formatting preference — several everyday workflows specifically require it:
- Photographers exporting from PNG-based screenshot or editing tools before uploading to portfolios that cap file size
- Online marketplaces and job portals (many government and university application forms) that only accept .jpg/.jpeg uploads
- Bloggers and e-commerce sellers compressing product screenshots so pages load faster
- Reducing attachment size so an email doesn't get bounced by a provider's size limit
A quick tip
If your PNG has fine text or hard geometric edges (a chart, a diagram, a screenshot of code), JPG compression can introduce visible fuzzing or "ringing" artifacts around sharp lines. For that kind of content, it's worth converting at a higher quality setting, or keeping it as PNG if file size isn't the constraint.
Frequently asked questions
Why convert PNG to JPG?
JPG files are usually much smaller, ideal for photos, email and uploads. Note that JPG does not support transparency.
Is it private?
Yes — conversion happens on your device and nothing is uploaded.
Will converting PNG to JPG lose quality?
Yes, JPG uses lossy compression, so there is always some quality loss, though at high quality settings it's usually invisible to the eye for photos. For text, line art, or screenshots the loss is more noticeable.
What happens to transparent areas in my PNG?
Since JPG doesn't support transparency, any transparent pixels are filled in with a solid background color (typically white) during conversion.
Can I convert several PNG files at once?
Yes, this tool accepts multiple files and converts them in one batch, so you can drag in a whole folder of screenshots or photos at once.
Why is my JPG still large after converting?
If the source PNG was already a high-resolution photo, the JPG will scale down proportionally to that resolution's data — for a smaller file, consider also reducing image dimensions, since compression alone has a ceiling.
Is the converted JPG safe to re-upload multiple times?
Each time you re-save a JPG it re-compresses and loses a little more detail (generation loss), so it's best to keep the original PNG as your master copy and always convert fresh from it.
Does this work on my phone?
Yes, the conversion runs directly in your mobile browser using the same on-device processing as desktop, so no app install is needed.
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