Fitbod - Personalized Strength-Training powered by Machine Learning
gpx.studio - View, create, edit and combine GPX files online to correct your activity data or design new awesome routes.
MyFitnessPal - Track the number of calories that you consume each day with MyFitnessPal. The app also lets you create a diet and track the exercise that you complete each day whether it's walking, running or some other type of program.
GPX Editor - Load, modify and save your GPX 1.1 files.
Fitocracy - Fitocracy is a social network that turns exercise into a cooperative and competitive exercise with friends, rivals, and strangers.
GPS Track Editor - GPS Track Editor: Free Windows Application to Make GPS Tracks Better.