Strava
FreeThe social network for athletes: track runs and rides with GPS, compare segment times, join clubs and challenges, and follow friends' activities. Free tier logs unlimited activities.
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Calorie and macro tracker with one of the largest food databases available, barcode scanning on mobile and exercise logging. Free tier covers core diary tracking with ads.
Nutrition tracker focused on accuracy: logs up to 84 micronutrients from lab-verified food data, not just calories and macros. Free tier includes full nutrient tracking with ads.
Nonprofit fitness resource offering thousands of free illustrated workouts requiring no equipment, plus structured multi-week training programs, meal plans and daily challenges — every page printable, ad-free and donation-supported.
Click a muscle on an interactive body map to see exercises targeting it, each with short video demonstrations and form cues for barbell, dumbbell, bodyweight and machine variants. Free.
Free training analytics for cyclists and runners: syncs with Strava and Garmin to chart fitness, fatigue and form, analyze power and heart-rate data, and plan structured workouts. Donation-supported.
Programmable weightlifting tracker: build or import progressive programs in a simple scripting language, track sets in the gym, and let progression rules auto-adjust weights. Open source and free.