Convert JPG to PNG Online
Convert JPG images to PNG — 100% private, processed in your browser.
Drag & drop JPG files here
or browse
No server-imposed limits · freeJPG to PNG re-encodes JPG images as lossless PNG at the same pixel dimensions. Converting can't make a JPG sharper, since JPG is already lossy, but nothing more is lost — which suits editing workflows and sites that insist on PNG. Convert one image or a batch; several come back together in a ZIP.
What you can do
- Lossless PNG output at the same pixel dimensions.
- No additional quality is lost in the conversion.
- Batch conversion into a single ZIP.
- No hard file-size limit; very large images (over about 30 megapixels) may take a few seconds.
How it works
- 1Drop your JPG images onto the page.
- 2Click Process File.
- 3Click Download — several images arrive together as a ZIP.
Why use SmilingPDF for this
- Decoded and re-encoded on your device, so your photos are never uploaded.
- Convert a whole folder's worth in one go.
- No watermark and no sign-up.
Private by design
Your file stays on your device.
- No upload
- No server storage
- No account required
- Browser-based processing
- No watermark
This tool runs inside your browser tab. Your file is read from your device, processed there, and handed back as a download — it is never sent to a SmilingPDF server, so there is nothing for us to store, read, or lose. You can check for yourself: open your browser's developer tools, switch to the Network tab and run the tool. Like most sites, SmilingPDF uses Google Analytics to count visits and which tools are used; that never includes the contents of your files. The privacy policy lists everything the site does collect.
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FAQ
Frequently asked questions
Got questions? We've got answers.
How does JPG to PNG conversion work?
Your JPG is decoded in the browser and re-encoded as a lossless PNG at the same pixel dimensions. Nothing is uploaded — the conversion happens entirely on your device.
Will the quality change?
PNG is lossless, so no additional quality is lost during conversion. The output can't be sharper than the original JPG (JPG itself is lossy), but nothing is discarded going to PNG.
Can I convert multiple JPGs at once?
Yes — upload as many JPG files as you like and they'll all be converted and packaged into a single ZIP download.
Is there a file size limit?
SmilingPDF imposes no file-size limit. Very large images (over ~30MP) may take a few seconds to process in the browser.