Images
JPG to PNG converter
Free JPG to PNG converter: re-wrap JPEG photos in a lossless PNG container to avoid further compression cycles. Runs locally—nothing leaves the tab.
Overview
Re-wrap JPEG pixels into a PNG container when a workflow or tool requires PNG input. This does not recover quality lost by earlier JPEG compression, but avoids another lossy save cycle.
Conversion pair
Provide one .JPG asset and download .PNG encoded entirely in-browser—pixels stay on your machine throughout the swap.
About .JPG
JPEG is the universally accepted photo codec; transparency is flattened away.
Other image pairs
Switch pairings—all use the same in-tab workflow below.
Frequently asked questions
Does JPG to PNG improve quality or undo JPEG compression?
No—detail lost to JPEG cannot be restored. PNG avoids additional lossy compression on future saves.
Why is my file bigger after converting JPG to PNG?
PNG is lossless and often bigger than JPEG for photos.
Is JPG to PNG conversion private? Are photos uploaded?
No. Decode and encode happen locally.