What is EXIF data?

EXIF fields explained

Why this matters

Most of these fields are harmless on their own. GPS coordinates and an embedded thumbnail are the two that most often cause real privacy problems: GPS pinpoints a real-world location, and an embedded thumbnail can retain a version of the image from before it was cropped or edited to hide something. Owner and copyright fields, and a camera's serial number, matter most in narrower cases — a journalist or activist protecting a source, or anyone who does not want separate photos linked back to the same physical camera.

Where these fields come from

Camera firmware writes most fields at the moment of capture: exposure settings, orientation, make, and model come from the camera's own sensor and processor. GPS fields come from a separate location chip, which is why cameras without one — most dedicated cameras, as opposed to smartphones — never write GPS data at all. Fields like software and later edit timestamps get added or overwritten afterward, whenever an editing application opens and resaves the file.

EXIF vs IPTC vs XMP

EXIF is one specific metadata standard, originally built for JPEG and TIFF photos to record camera settings. IPTC is an older standard, developed for the newspaper and photo-agency industry, that carries descriptive and copyright fields rather than camera settings. XMP is Adobe's extensible metadata framework, stored as embedded XML, and can duplicate or extend fields from either of the other two standards. A single file can carry EXIF, IPTC, and XMP blocks at the same time, each maintained somewhat independently by whatever software last touched the file.

Which file formats carry EXIF

JPEG and TIFF are EXIF's original hosts, and virtually every camera and phone writes EXIF into JPEG output by default. PNG's original specification did not include EXIF support; a later addition to the PNG standard defined an optional chunk for it, but not every PNG encoder writes or reads that chunk. WebP can carry EXIF in an optional metadata chunk when an encoder is configured to include it. GIF has no EXIF support at all.

Related guides

Does social media strip metadata? · Remove location data from your photos · Does screenshotting remove metadata?

FAQ

Does removing EXIF data reduce image quality?

It can, slightly. Removing EXIF data typically requires re-encoding the image, which is usually visually lossless but technically rewrites the file.

Is EXIF data the same as metadata?

EXIF is one specific metadata standard used by JPEG and TIFF photos. Metadata is the broader category, and can also include IPTC and XMP fields depending on the file and software used.

Can I remove just the GPS field and keep the rest?

Most simple browser-based tools, including this one, strip all EXIF data at once rather than field-by-field, since re-encoding the whole image is what actually removes the data.

Does converting a photo to a different format remove its EXIF data?

Not reliably by itself. Some encoders drop metadata during conversion, and some carry it forward into the new file's own metadata chunk if the target format supports one. A dedicated metadata-removal step is a more direct guarantee than relying on a format change alone.

Do all cameras write the same EXIF fields?

No. The exact set of fields written depends on the manufacturer, the firmware, and which sensors the device has. Smartphones typically write more fields than dedicated cameras without a GPS chip or network connection, since they have more sensors to report from.