Harvard offers free computer science courses.

HarvardX CS50 courses on EdX include AP Computer Science Principles and Introduction to Computer Science.

HarvardX courses cover the basics of computer science. Additionally, they provide a basic understanding of languages, including C, PHP, and JavaScript plus SQL, CSS, and HTML.

The HarvardX AP Computer Science Principles course also satisfies the College Board’s curriculum framework for AP CS Principles.

Learn more about the EdEx courses: