173 free courses

All free online courses

Search and filter everything we list. Every card says whether the certificate is free, paid or not offered, and links straight to the provider.

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16 of 173 free courses match

Harvard Online
CS50's Introduction to Programming with Python
Harvard's dedicated Python course: functions to unit tests, regex and object-oriented programming.
Free certificateProgramming
60 hrsBeginner
Harvard Online
CS50x: Introduction to Computer Science
Harvard's famous intro to computer science, from Scratch and C to Python, SQL and the web.
Free certificateProgramming
120 hrsBeginner
Harvard Online
CS50's Introduction to Cybersecurity
Harvard's free CS50 course on securing accounts, data, systems and software, and on preserving privacy.
Free certificateCyber Security
Self-pacedBeginner
Harvard Online
CS50's Introduction to Databases with SQL
Harvard's course on querying, designing and scaling relational databases with SQL.
Free certificateData Science
50 hrsBeginner
Harvard Online
CS50's Introduction to Programming with R
Harvard's R course: representing, transforming, tidying and visualizing data.
Free certificateData Science
40 hrsBeginner
Harvard Online
CS50's Introduction to Artificial Intelligence with Python
Harvard's AI course: search, knowledge, uncertainty, optimization, learning and language.
Free certificateAI & Machine Learning
70 hrsIntermediate
Harvard Online
CS50's Web Programming with Python and JavaScript
Harvard's follow-on to CS50x: build and deploy web apps with Django, JavaScript and SQL.
Free certificateWeb Development
120 hrsIntermediate
Harvard Online
Backyard Meteorology: The Science of Weather
HarvardX course on reading the sky and forecasting tomorrow's weather from your own observations.
Paid certificateScience
24 hrsBeginner
Harvard Online
Building Personal Resilience: Managing Anxiety and Mental Health
Harvard Medical School course teaching five CBT-based skills for managing stress and anxiety.
Paid certificateHealth & Psychology
9 hrsBeginner
Harvard Online
Fat Chance: Probability from the Ground Up
Beginner-friendly HarvardX course building probability from basic counting up to the normal distribution.
Paid certificateMathematics
Self-pacedBeginner
Harvard Online
Justice
Michael Sandel's famous Harvard course on moral and political philosophy and today's debates.
Paid certificateWriting & Humanities
54 hrsBeginner
Harvard Online
Masterpieces of World Literature
Harvard survey of world literature from Gilgamesh and Homer to Borges and Lahiri.
Paid certificateWriting & Humanities
72 hrsBeginner
Harvard Online
Structure and Function of Argument: Introduction to Critical Thinking
HarvardX introduction to mapping, analysing and strengthening everyday arguments.
Paid certificateWriting & Humanities
20 hrsBeginner
Harvard Online
Super-Earths and Life
HarvardX astrobiology course on how life arose and how we search for habitable planets.
Paid certificateScience
97 hrsBeginner
Harvard Online
Calculus Applied!
Case studies showing how calculus models real problems in economics, medicine and more.
Paid certificateMathematics
45 hrsIntermediate
Harvard Online
Principles of Biochemistry
HarvardX course on the molecules of life, enzymes and metabolic pathways.
Paid certificateScience
Self-pacedIntermediate