GeeksforGeeks is described as 'A Computer Science portal for geeks. It contains well written, well thought and well-explained computer science and programming articles, quizzes and practice/competitive programming/company interview Questions' and is an website in the News & Books category. There are more than 50 alternatives to GeeksforGeeks, not only websites but also apps for a variety of platforms, including Android, iPhone, iPad and Android Tablet. The best alternative is Stack Overflow. It's not free, so if you're looking for a free alternative, you could try freeCodeCamp or Codecademy. Other great sites and apps similar to GeeksforGeeks are SoloLearn (Freemium), W3Schools (Free), tutorialspoint (Free) and Code.org (Free).
Stack Overflow, part of Stack Exchange, is a free, community-driven, reputation-based Q & A site for computer programmers. No membership is required to ask questions or provide answers to questions by others.
Code.org is a non-profit whose goal is to expose all students to computer programming. We believe that computer programming is a liberal art; it's something EVERY student in the world should be exposed to at some point in their childhood education.