Convert JPG (JPEG) images to PNG format. JPG is a compression format suited to photos, but it loses a little quality each time it is saved. PNG uses lossless compression and supports transparency, so it is a better fit for logos, icons, and images you edit repeatedly.
To use it, drag and drop a JPG image into the box above (or pick one with Open image). The save format is set to PNG automatically, so just press Save in this format to download the PNG. Your image is never sent over the internet - everything is processed in your own browser, so it stays safe.