A version of openguessr but with your own pictures. The point is to place a randomly selected photo from your gallery as precisely as you can on the map. The system knows the real location thanks to GPS coordinates embedded in photos. This is why screenshots don't work: they don't have GPS data.
To play, select photos from your gallery on phone or from a folder on computer. Loading images will probably take a while, particularly for HEIC photos (iPhone). The program creates a list of which photos have GPS and adds a bias factor so you don't see the same pictures repeatedly. This setup should only happen once.
For safety: your pictures never leave your device. You could play offline once the page loads (though the map won't work as it pulls tiles from the internet). This site is hosted on Netlify, which only serves static files—there's no server to receive photos. You can view the source code to verify, or have an AI check it.
If you still don't trust this, download the code from GitHub and run it locally.
Have fun!