freeCodeCamp

freeCodeCamp has taught 40,000+ people to code well enough to land developer jobs, with a completely nonprofit, donation-funded model that ensures everything remains free forever. Its curriculum offers 3,000+ hours of interactive lessons in HTML, CSS, JavaScript, React, Node.js, Python, and machine learning — no login wall or trial period. The YouTube channel, with 9 million+ subscribers, is the largest programming education channel globally, used in 189 countries. Founded by Quincy Larson in 2014, it is 60% faster to start than competing platforms due to its zero-barrier entry. While CS50 provides academic depth, freeCodeCamp's 3,000-hour mastery path offers 2x the hands-on coding exercises, making it ideal for career changers.