What EXIF data is
EXIF (Exchangeable Image File Format) is a block of tags that cameras and phones write into a photo at the moment it is taken. A single image can carry dozens of fields. The viewer counts how many it found and summarizes the ones people actually look for, alongside the file details such as format, dimensions, DPI and color profile.
Fields the EXIF viewer shows
Camera and lens: the make and model of the phone or camera, and the lens model when it is recorded. Exposure: shutter speed, aperture and ISO together, for example 1/120 s · f/1.8 · ISO 100, plus the focal length in millimeters.
Date taken: the original capture time, in the camera's own format (year:month:day hour:minute:second). It is the camera clock's local time and usually carries no time zone. GPS location: latitude and longitude in decimal degrees, shown to four decimal places, which is roughly 11 meters. Software: the firmware version or the editing app that last saved the file.
Why a photo may show no EXIF
Screenshots and images generated by apps usually have none. Many social networks and messaging apps strip metadata from images when you upload or send them, and so do a lot of export and compression tools. A file saved from a web page is often a re-encoded copy with nothing left. When a field is missing, the viewer shows a dash rather than guessing.
Check before you share
Original photos sent by email, cloud link or as a file attachment usually keep their EXIF, GPS included. If the viewer shows a location you would rather not share, the GPS Metadata Remover deletes just the coordinates, and the EXIF Remover can also clear camera details, dates and software.