gpx.studio is an online free GPX viewer and editor with lots of features : - visualize multiple files in different colors and aided by many different maps (cycling, hiking, satellite, Strava heatmap overlay, etc) - edit traces by adding, inserting, moving or deleting points - reverse traces - simplify traces - add timestamps to a file - view, add, edit and remove waypoints - automatically add elevation data to traces if missing - merge multiple files, extending time, heart rate, cadence and temperature data where needed - extract segments from traces and perform any other action while maintaining the segments' structure within files - save the result on your computer or to your Google Drive™ to get a shareable link and code to embed the map on your website