How do I build muscle without going to a gym?

You can build muscle at home using bodyweight exercises and minimal equipment. Focus on progressive overload, meaning you consistently make exercises harder over time. Key movements include push-ups, pull-ups, dips, squats, lunges, and planks. To progress, increase reps, slow down the tempo, reduce rest time, or move to harder variations like pike push-ups, archer push-ups, or pistol squats. Resistance bands and a pull-up bar are cheap investments that dramatically expand your options. Nutrition matters just as much as training, so eat enough protein, roughly 0.7 to 1 gram per pound of bodyweight daily. Train each muscle group at least twice per week and prioritize sleep and recovery, since that's when actual muscle growth happens.