JPG to PNG converter
Imagesconversion pair
Convert JPG to PNG in your browser: pick the file and download a lossless PNG. No upload, no server.
the detail JPEG already threw away does not come back, but it stops there.
work surface
Files never leave your browser — results are indicative.Read the disclaimer.
pro tips
Convert to PNG before annotating or retouching, not after three rounds of JPEG saves.
Expect a larger file. PNG is lossless, so photographs take more space than they did as JPEG.
If the goal is a smaller file, you want the other direction: PNG to JPEG.
what it does
This page turns a JPEG into a PNG. The source is read from the file, the target is fixed to PNG, and the whole conversion happens locally on a canvas.
Converting to PNG makes sense when you are about to edit an image and want to stop accumulating JPEG artifacts with every save. It is also the format you want for screenshots, diagrams and anything with sharp edges or text, where PNG's lossless encoding holds up better.
It will not restore detail that the original JPEG already discarded. The pixels are the same; only the wrapper changes. What you gain is a stable, lossless file to work from, not a magically sharper photograph.
Choose a JPEG and download the PNG. The preview shows the result and the size comparison tells you what the lossless wrapper costs, which for photographs is usually more than the JPEG original.
quick answers
Does JPG to PNG improve the quality?
No. The pixels are copied as they are. PNG prevents further loss during editing, but it cannot recover detail that JPEG already removed.
Why is the PNG larger than the JPEG?
PNG is lossless and does not discard detail, so photographic images take more space. The trade-off is stability during editing, not size.
Can I convert several images at once?
Not in this version. The page handles one file at a time and keeps everything in your browser.