Drop one or more photos. The hidden data is cut out and you download clean copies; the picture itself is not touched, so there is no quality loss. Nothing is uploaded.
JPEG: the EXIF, XMP and IPTC blocks and comments are removed; the colour profile stays so colours look the same. You can keep the rotation flag so portrait photos stay upright.
PNG: text and EXIF chunks are removed. WebP: EXIF and XMP chunks are removed.
Everything a photo knows: camera, lens, settings, date and GPS location.
Shutter countRead how many photos your camera has taken, from one of its photos.
Print sizeHow big you can print a photo, or how many pixels a print needs.
Memory card spaceHow many photos or minutes of video fit on your card.