Why choose this conversion
Choose JPG → PNG when you need a lossless bitmap.
Browser-based image tools
Convert JPG to PNG online
Add images to begin
Images are processed in your browser and are not uploaded to ViewerPix.Drop images to convertJPGor click to choose files
1. Images
3. Convert
0After conversion, download each file or download all as ZIP.
Output0/0
- 1AddedChoose one or more images.
- 2ConvertPick an output format and convert.
- 3DownloadSave each result or a ZIP.
Add images to begin.
How to convert JPG to PNG
- 1
Add a JPG image
Choose the source files for this fixed conversion. JPG.
- 2
Review the PNG output
Review the target format and adjust quality or background when available. PNG.
- 3
Convert and save the result
Start the conversion, inspect the output, then download the result.
What changes: JPG → PNG
The JPG to PNG decision depends on the receiving workflow. Check the target format's trade-offs before downloading.
What changes
JPG is decoded in the browser before the new PNG file is encoded. Pixel dimensions stay unchanged by default, but the new encoding can change file size and pixel values. PNG is lossless and can keep alpha when the decoded input has it, but files are often larger.
What stays the same
Pixel dimensions stay the same by default. Metadata is not guaranteed to carry over.
Quality and format trade-offs
The target encoding is lossless, but it cannot restore detail that was already lost in a lossy source. PNG is lossless and can keep alpha when the decoded input has it, but files are often larger.
Best for
Best fit: PNG is lossless and can keep alpha when the decoded input has it, but files are often larger.
When to avoid or check
Keep the source until the result opens correctly. A damaged file, unsupported encoding or decoder failure can prevent conversion.
Questions about JPG to PNG
Why choose this conversion
The receiving workflow decides the choice: Use this when you need a lossless bitmap.
What changes when converting JPG to PNG?
The browser decodes JPG first. Pixel dimensions stay unchanged by default, but the new encoding can change file size and pixel values.
Who is JPG to PNG best for?
PNG is useful when you need a lossless bitmap. PNG is lossless and can keep alpha when the decoded input has it, but files are often larger.
What can prevent JPG to PNG from working?
Before replacing the source, check the downloaded file: Keep the source until the result opens correctly. A damaged file, unsupported encoding or decoder failure can prevent conversion.
Private browser processing
ViewerPix processes supported images on your device. Your image files are not uploaded to a ViewerPix application server for this task.