Course description

This course examines the design and implementation of web applications with Python, JavaScript, and SQL using frameworks like Flask and Bootstrap. Topics include database design, scalability, security, and user experience. Through hands-on projects, students learn to write and use APIs, create interactive user interfaces (UIs), and leverage cloud services like GitHub and Heroku. By semester's end, students emerge with knowledge and experience in the principles, languages, and tools that empower them to design and deploy applications on the internet.


  • Gordon McKay Professor of the Practice of Computer Science, Harvard University
  • Developer and Head Teaching Fellow, CS50, Harvard University
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