JPG to PNG converter
Turn JPG files into PNG in a couple of taps. Drop in one file or a whole batch; each one converts on your device with its own download button.
To convert JPG to PNG, choose your JPG files above and tap Download next to each result. The conversion runs in your browser, so nothing is uploaded and there's no limit on how many files you convert.
How to convert JPG to PNG
- Choose or drop your JPG files above. You can select many at once.
- Each file converts straight away and shows its new size.
- Tap Download next to each one.
Why convert JPG to PNG
Some apps, design tools and upload forms only accept PNG. PNG is also handy when you'll edit an image several times, because it doesn't lose quality each time it's saved. Note that converting won't make the background transparent by itself; it only changes the format. The PNG is usually larger than the JPG.
Keep them locked, offline
Sealcloak encrypts your photos, videos and files on your phone. No account, no cloud, no internet permission.
Private by design
The tool runs entirely inside this browser tab. Your photo is opened, edited and saved on your own device, and it is never sent to a server, so there is nothing for anyone to keep, scan or leak. No account, no watermark and no limit on how many photos you do. It even keeps working if you switch off your internet after the page has loaded.
JPG vs PNG at a glance
| JPG | PNG | WebP | HEIC | |
|---|---|---|---|---|
| Best for | Photos | Screenshots, logos, text | Websites | iPhone camera |
| Transparency | No | Yes | Yes | Yes |
| File size | Small | Large | Smallest | Small |
| Opens everywhere | Yes | Yes | Most apps | Often not |
Need a smaller file as well? Use compress image after converting.
Photos you never want anyone to see are better kept out of the gallery altogether. See how to hide photos on Android, or how Sealcloak keeps them encrypted on your phone.
Frequently asked questions
Will converting JPG to PNG lose quality?
PNG is lossless, so the result keeps every pixel of the decoded image. Converting can't add back detail that the original file didn't have.
Can I convert many files at once?
Yes. Choose or drop as many files as you like. Each converts on your device and gets its own download button.
Does it work on my phone?
Yes. It works in Chrome, Samsung Internet, Firefox and Safari on Android, iPhone, tablets and computers.
Are my files uploaded?
No. The conversion happens in your browser on your own device, and your files are never sent to any server.
Will converting JPG to PNG make the background transparent?
No. Converting only changes the file format. The background stays as it is in the photo; removing it needs a separate background remover.
PNG to JPG: convert images free, no upload
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PNG to WebP: convert images free, no upload
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WebP to JPG: convert images free, no upload
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