What Is EXIF Data? Everything Stored in Your Photos
Every digital photo you take contains hidden data called EXIF (Exchangeable Image File Format). Your camera or phone writes this data into the image file automatically. It records how the photo was taken, when, where, and with what equipment.
This data is invisible when you look at the photo, but it's there in the file's binary structure, readable by anyone who has the file.
What EXIF Records
The amount of data varies by camera, but a typical photo contains:
Camera and Settings
- Camera make and model: "Canon EOS R5", "Apple iPhone 15 Pro"
- Lens: focal length, lens model, max aperture
- Exposure settings: shutter speed, aperture (f-stop), ISO
- Flash: whether it fired, and in what mode
- Metering mode: evaluative, spot, center-weighted
- White balance: auto, daylight, tungsten, etc.
- Focal length: actual and 35mm equivalent
Date and Time
- Date taken: the original capture date and time
- Date digitized: when the image was digitized (same as capture for digital cameras)
- Date modified: last edit timestamp
GPS Location
- Latitude and longitude: precise coordinates where the photo was taken
- Altitude: elevation above sea level
- Direction: which way the camera was pointing
GPS data is written by phones by default and by cameras with built-in or connected GPS. This is the most privacy-sensitive part of EXIF data.
Image Properties
- Dimensions: pixel width and height
- Resolution: DPI/PPI value
- Orientation: rotation flag (portrait vs landscape)
- Color space: sRGB, Adobe RGB, uncalibrated
- Bit depth: 8-bit, 16-bit
Software and Editing
- Software: the application that last saved the file ("Adobe Photoshop 25.0", "Lightroom Classic 13.1")
- Copyright: if set in camera or editing software
- Artist/Author: photographer name if configured
EXIF vs IPTC vs XMP
EXIF is one of three metadata standards commonly embedded in images:
| Standard | Purpose | Written by |
|---|---|---|
| EXIF | Technical capture data | Camera automatically |
| IPTC | Editorial (headline, caption, keywords, credit) | Photographer or editor manually |
| XMP | Extensible metadata (Adobe standard, covers both technical and editorial) | Editing software |
A well-managed photo from a news agency might have all three: EXIF from the camera, IPTC added by the photographer (caption, keywords, location name), and XMP from Lightroom or Photoshop with editing history and additional metadata.
Privacy Implications
EXIF data can reveal more than you intend:
- GPS coordinates can pinpoint your home, workplace, or current location
- Date/time stamps reveal when you were somewhere
- Camera serial numbers can uniquely identify your device
- Software fields can reveal your editing tools and workflow
Major social media platforms (Instagram, Facebook, Twitter) strip EXIF data on upload. But if you share photos via email, messaging apps, cloud storage, or your own website, the EXIF data typically stays intact.
If you're sharing photos publicly and privacy matters, strip the EXIF data first. At minimum, remove the GPS coordinates.
Which File Formats Support EXIF
- JPEG: stored in APP1 marker segment
- TIFF: stored directly in the file's IFD structure (TIFF and EXIF share the same binary format)
- PNG: supported via the
eXIfchunk (added in 2017, not universally written yet) - HEIF/HEIC: supported (iPhone's native format)
- WebP: supported via RIFF metadata chunks
- RAW formats: all major RAW formats (CR3, NEF, ARW, etc.) contain EXIF
How to View EXIF Data
You can view the complete EXIF, IPTC, and XMP metadata in any image using our free browser-based tool. It decodes every field, including camera settings, GPS, copyright, and all raw tags. Your files never leave your browser.