GPS Visualizer is a free online service that allows users to create custom maps and profiles from GPS data. The website offers tools for visualizing geographic data by converting text-based GPS data files into various formats, including interactive web maps. Users can upload data in formats such as GPX, KML, CSV, and others to generate maps that can display tracks, waypoints, and additional geospatial information. The tool is particularly useful for hikers, cyclists, and other outdoor enthusiasts looking to visualize their travel routes and locations. GPS Visualizer emphasizes ease of use and flexibility, allowing for a wide range of customization options to suit different user needs.