What it does
Turn PNG images into JPG files that are smaller and accepted everywhere, with transparent areas filled in white.
PNG is great for graphics, but photos saved as PNG are often five to ten times bigger than the same picture as JPG, and some forms only accept JPG. cextool converts PNG to JPG in your browser and makes the file far smaller while keeping the photo looking the same.
JPG has no transparency, so transparent areas are filled with white. For a logo or graphic that needs to stay transparent, choose WebP or keep PNG instead. Drop a whole folder to convert many files at once and download them as a ZIP. The result is a standard baseline-compatible JPG that every phone, computer, website and printer accepts, which is often the whole reason a form rejected the PNG in the first place.
Conversion runs on your device with MozJPEG. Nothing is uploaded, and location and camera metadata are removed from the result by default.