CS50 Beyond

OpenCourseWare

Brian Yu
brian@cs.harvard.edu

CS50x Puzzle Day 2025new
Zoom Meetings

HTML and CSS
Git and GitHub
Python and Flask
Object-Oriented Programming and AI
JavaScript
JavaScript, continued
SQL
ORMs and APIs
React
React, continued
Thinking in React
Security and Scalability

References
Software

YouTube

Staff

Apple TV
Google TV

Status Page

Communities
Bluesky
Clubhouse
Discord Q&A
Ed Q&A
Facebook Group Q&A
Facebook Page
GitHub
Gitter Q&A
Instagram
LinkedIn Group
LinkedIn Page
Medium
Quora
Reddit Q&A
Slack Q&A
Snapchat
SoundCloud
Stack Exchange Q&A
Telegram
TikTok
Threads
Twitter Account
Twitter Community
YouTube

Courses
CS50x
CS50 AI
CS50 Business
CS50 Cybersecurity
CS50 for Lawyers
CS50 Python
CS50 R
CS50 Scratch
CS50 SQL
CS50 Web

Projects

Tic-Tac-Toe
Quiz
Books
Todo
Flashcards