What Your Photos Actually Contain
The image is just part of the file. Baked into every photo from your phone is a second layer of information that's invisible when you look at it, but readable by anyone who has the file.
What's in there
EXIF is a metadata standard from the 1990s. Cameras used it to log shutter speed and aperture. Smartphones turned it into a detailed activity log. A typical iPhone photo embeds:
| Field | Example | What it tells someone |
|---|---|---|
| GPS Latitude/Longitude | 51.50732, -0.12776 | Where you were, within about 5 metres |
| GPS Altitude | 34 metres | Which floor, rough elevation |
| Date and Time | 2026-05-25 14:32 | When the photo was taken |
| Device Model | Apple iPhone 15 Pro | What phone you own |
| Software Version | iOS 18.4 | Your current OS version |
When does it travel with the file
Direct transfers keep the EXIF intact: email, WhatsApp, AirDrop, iMessage on "Original" quality, Dropbox links. The recipient gets the raw file.
Most social platforms (Instagram, Twitter, Facebook) strip EXIF before displaying your photos. Forums and smaller platforms often don't. If you're not sure, assume it's there.
Why it matters in practice
Selling something on Facebook Marketplace: the product photo you shot at home has your home coordinates. Posting a photo of your kids' school play: the GPS says which school. Sharing a photo while you're traveling: the timestamp plus GPS shows you're not home.
Most of the time, none of this matters. But it's worth knowing it's there before you share with strangers.
How to strip it
Drop your photos at clientside.sh/metadata. The tool shows you what's in each file, strips it, and gives you a clean copy. For JPEGs, the image data is untouched. Nothing is uploaded.