How to convert JPG to PNG
- Choose your JPG file.Open the converter and select a compatible source from your device.
- Set the PNG output.Confirm PNG as the output. PNG is lossless here, so the quality slider is intentionally hidden.
- Save the finished file.Download the result directly when local processing is complete.
When PNG is the right choice
graphics editors, slide decks, app assets, and workflows that specifically accept PNG.
Start with a sensible output
PNG is lossless, so there is no quality slider. Expect photographs to become larger and remember that JPG artifacts remain visible.
JPG compared with PNG
Changing JPG to PNG does not recreate transparency or lost image detail. It only avoids additional loss during the new export.
What FLUX actually changes
The browser decodes the JPG pixels and writes them to a lossless PNG canvas export. The source's missing alpha channel is not recreated.
Your file stays with your browser
FLUX does not send selected files to its own conversion server. Processing is handled locally on your device, while versioned conversion modules may be loaded securely when needed.
- No conversion-server upload
- No watermark added
- No account required
Before you start
Images are decoded and exported through Canvas on your device. EXIF and IPTC metadata are not copied to the result. Extremely large pixel dimensions can exceed a browser's available memory.
JPG to PNG FAQ
Is JPG to PNG conversion free?
Yes. Use the converter without payment or a mandatory account.
Will my JPG file be uploaded?
No FLUX conversion server receives your selected file. The processing happens on your device.
Can the conversion improve quality?
No. Changing JPG to PNG does not recreate transparency or lost image detail. It only avoids additional loss during the new export.