Code.org includes free coding lessons and the initiative also targets schools in an attempt to encourage them to include more computer science classes in the curriculum. Developed by Code.org
License: Free
Code.org is primarily focused on K-12 education with a project-based and gamified approach, making it ideal for younger learners. In contrast, ThinkTutorial offers a wider range of courses and certifications, catering to a broader audience, including adults, but lacks the interactive and community-driven features of Code.org.