Harvard's free programming classes teach you how to think, debug, and adapt in an AI-driven world where knowing code matters more than ever.

Fundamental concepts of computers, computation and programming; history and principles of computing; problem solving; input, output; data representation, storage, and file organization; computer ...

Learning a new language requires a lot of time, but not necessarily a lot of money. Whether you're traveling to a foreign country or studying for a class, these are the best free language learning ...