Design tools, layering software, and anything that expects to add a transparent background later generally want a PNG rather than a JPG to start from, since JPG has no concept of transparency at all and re-compresses the whole image every time it's saved again. This tool converts JPG files to PNG, giving you a lossless base file that won't degrade further no matter how many times it gets edited and re-saved afterward. It won't restore detail a JPG already lost through its own compression, but it stops any further generational quality loss from that point forward.
How it works
1. Add your JPG file
Bring in the .jpg or .jpeg file you want to turn into a lossless PNG — drag it onto the target above, or tap that spot to browse your phone or computer. The file loads directly into your browser's memory with no upload delay.
2. Conversion to PNG happens on your device
The JPG is decoded and re-saved using PNG's lossless format, which avoids discarding any more detail during conversion. It cannot bring back detail that JPG compression already removed, but the resulting PNG can be edited and saved without further lossy degradation. Nothing is sent to a remote server.
3. Download your PNG file
The PNG is typically larger than the source JPG, which is the expected trade-off for lossless output. It is ready for a design tool, a transparency edit, or a durable working copy. To convert several images together, use Bulk Image Converter and download the batch as one ZIP.