Add photos to a track, a GPZ generator

Load a track (GPX, GPZ, FIT, KML or KMZ) and the photos you took along it. Each photo goes on the track as a waypoint, by its GPS location or, for a camera without GPS, by the time it was taken, and you download a GPZ (Locus Map, GPX Viewer) or a KMZ (Google Earth) with the photos inside, or open the lot in PitStopper. Rename a photo, describe it, or drag it along the track; add notes, and attach PDFs, audio or video. Everything happens in your browser: nothing is uploaded.

About this tool

What is a GPZ file?
A zip holding a GPX and the files its waypoints link to, photos above all. Locus Map and GPX Viewer open it with the pictures on the map, and nothing can go missing the way a link to a photo on the web can.
My camera has no GPS. Can I still add its photos?
Yes, if the track has times, as a recorded ride does. Each photo goes where you were when it was taken. If they land in the wrong place, set the camera's time zone or how fast its clock was under Camera clock, or drag a pin along the track.
Are my photos uploaded?
No. Reading, placing and writing the file all happen in your browser, and the page cannot send anything anywhere.
Can I add photos to a GPZ I already have?
Yes. Load the .gpz as the track: its waypoints, photos and icons are kept as they are, and the new ones are added beside them.

iPhone (HEIC) photos are converted in your browser with heic-to and libheif, LGPL-3.0.