Timeline Visualizer takes a Google Timeline JSON file, replays your routes and exports MP4 or WebM video in the browser. No account, your file is not uploaded, and map tiles load from CARTO unless you use privacy mode. It is not affiliated with Google.
Google Maps Timeline exports are hard to replay. Timeline Visualizer opens the location-history JSON locally in the browser so you can replay routes and export a travel video without uploading the file or creating an account.