CS50 — Harvard Computer Science

The best introduction to computer science, free to audit.

Harvard's flagship CS course with lectures, problem sets and a final project. Hard but transformative: it teaches how computers work, not just how to write a framework.

computer-scienceharvardfundamentals

What you get

Video course — delivered from the official source, always the latest version.
Licence: Creative Commons. Safe to use in personal and client work.
No signup, no email wall, no download manager.

LearningfreeCodeCamp Full Curriculum

Thousands of hours of coding lessons and certifications.

Interactive course · BSD / open

LearningKhan Academy

Maths, science and economics from basics to advanced.

Course platform · Free tier — no card required

LearningMIT OpenCourseWare

Real MIT course materials, openly published.

Course materials · Creative Commons

LearningResearch Methods in Psychology

How valid tests are actually built and validated.

Open textbook · Creative Commons

LearningOpen Language Learning Pack

Free courses, frequency lists and spaced repetition.

App + decks · AGPL / open source

LearningTyping Speed Trainer

Measurable typing improvement in minutes a day.

Web app · GPL / open source

See the full Learning collection

People also grabbed

AIOllama — Run Open LLMs Locally

Local models on your own machine, no API bill.

Desktop runtime + CLI · MIT / open source

DevVite + React + TypeScript Starter

Production-ready SPA skeleton with strict TS and fast HMR.

Git repository template · MIT / open source

DevTailwind CSS Complete Reference

Every utility class, searchable and offline-friendly.

Web reference · MIT / open source

Next packKhan Academy

CS50 — Harvard Computer Science

What you get

More free Learning resources

People also grabbed