Available online: locationhistoryvisualizer.com/heatmap/
A tool for visualizing your complete, consolidated, collected Google Location History.
It works directly in your web browser – no software to download, no packages to install. Everyone deserves to know what data is being collected about them, without having to fiddle with cryptic pieces of software.
location-history-visualizer takes raw Google Takeout output and produces a heatmap of all of your location data over time, overlaid on an interactive map.