See the GPS, camera and serial number hidden inside it — then download a clean copy.
Read locally, never uploaded. A tool that asks you to upload a photo to see if it leaks your address would rather miss the point.
Every photo your phone takes carries a hidden block of data called EXIF. It holds the exact GPS coordinates where the shutter fired — usually accurate to a few metres — along with the date and time to the second, the phone or camera model, the lens, the exposure settings and sometimes a serial number that links every photo you have ever taken to the same device. This EXIF viewer shows you all of it, plots the coordinates on a map link, and hands you a clean copy with the whole lot stripped.
People assume the internet strips this. Facebook, Instagram and Twitter usually do, because they re-encode your upload. But email attachments, messaging apps, cloud links, marketplace listings, CVs, and your own website generally don't. Sell a sofa with a photo taken in your living room and the listing quietly ships your home coordinates to every browser. Post a picture of your dog in the garden and the same. The fix takes one click — the problem is that almost nobody knows it's there.
The clean copy is re-encoded through the browser's canvas, which discards every metadata segment: EXIF, GPS, thumbnail, XMP, IPTC and the colour profile. That is thorough, and it is worth knowing the trade-off: because the pixels are re-encoded as a new JPEG, the file is not byte-identical to the original and goes through one more lossy generation. For hiding your address before you post a photo that is exactly what you want. For archiving a master file, keep the original.
Related: Image Compressor · Background Remover · Story Resizer