Workout Library Makemyworkout Online Fitness Tracker has a huge workout library with predefined workouts which can be used to put together a routine and applied to the calendar. These workouts can be used as is or can be modified after adding to your routine. Also you can create your own custom workouts. Please see "custom workouts" link for details. Shown here is just a section of the library. The actual library has over 100 different workouts for your use.