PNG files, especially photos and screenshots, can be huge. Converting to JPG often makes them several times smaller.
PNG is lossless, which is great for logos and graphics with sharp edges, but wasteful for photos. A photo saved as PNG can be five to ten times bigger than the same photo as JPG.
This page converts to JPG at quality 90 and keeps the original size. JPG doesn't support transparency, so transparent areas become white.
Transparent parts become white in the JPG. If you need transparency, keep PNG or use WebP instead.
Usually not. Logos and graphics with flat colours look best as PNG or WebP. JPG is best for photos.
Yes. Add them all and download the JPGs as a ZIP.