Jpeg compressoris the best tool for shrinking the file size of a JPEG image. JPEG images frequently include large amounts of data, which makes them slow to load and challenging to email or post online. The image will load more quickly and be easier to email or share online if the file size is reduced. There are several different JPEG size reducers available online, and many of them are completely free to use. Simply add your JPEG image to the reduction, and the file size will be automatically reduced.