TrailDrop is described as 'Lightweight GPX open and sharing platform for outdoor enthusiasts, creators, and clubs. Upload your GPS track, generate a link, and share it instantly without requiring others to sign up' and is an website in the sport & health category. There are more than 25 alternatives to TrailDrop, not only websites but also apps for a variety of platforms, including Android, iPhone, iPad and Android Tablet apps. The best TrailDrop alternative is CoMaps, which is both free and Open Source. Other great sites and apps similar to TrailDrop are OsmAnd, OsmAPP, Transportr and RouteScout.