Am besten: Metanull
Removes all metadata information (EXIF, IPTC, XMP, GPS) from JPEG files in single or batch mode, in order to reduce total occupied size
Metanull is a small-sized and portable application developed for removing EXIF, IPTC, XMP and GPS information from JPEG files.
It comes in handy whenever you want to reduce the total size of images saved on a digital camera or other removable device.
Since installation is not a prerequisite, Metanull can be run on any workstation directly from a pen drive or other similar removable device.