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 it works
Convert locally in your browser
ViewerPix decodes and converts supported images on your device. Your files do not need to be uploaded to an application server.
Batch conversion without extra steps
Add multiple images, convert them with the same output settings, then download one result or all completed files.
Control image quality
For JPG and WebP output, adjust quality before converting. PNG remains lossless and keeps transparency when possible.
How to convert JPG to PNG
- 1
Choose your JPG image
Choose, drag or paste one or more JPG files. This page is dedicated to JPG → PNG.
- 2
Review PNG output settings
The output format is fixed to PNG. Adjust quality or background only when that setting applies to PNG.
- 3
Convert and download
Convert locally in your browser, inspect the result, then download one file or a ZIP for multiple conversions.
About Convert JPG to PNG Online
This converter keeps the original pixel dimensions by default and changes the file encoding to the selected output format.
About JPG
JPG is a widely supported lossy photo format. It is convenient for sharing and compatibility, but it does not support transparency.
Why export as PNG?
PNG is lossless and can preserve transparency, which makes it useful for graphics and further editing, usually at a larger file size than JPG.
Frequently asked questions
Why convert JPG to PNG?
PNG is lossless and can preserve transparency, which makes it useful for graphics and further editing, usually at a larger file size than JPG.
What happens to quality and transparency when converting JPG to PNG?
PNG output is lossless and can keep transparency when the decoded source contains alpha. Converting a lossy source to PNG does not restore detail that was already lost.
What should I know about JPG before converting it?
JPG is a widely supported lossy photo format. It is convenient for sharing and compatibility, but it does not support transparency.
Are my images uploaded to a server?
No. Supported image processing runs locally in your browser. Third-party decoder code may be loaded only when a format needs it, but your image itself stays on your device.
Private browser processing
ViewerPix processes supported images on your device. Your image files are not uploaded to a ViewerPix application server for this task.