TL;DR:Find a wide range of free online courses from Harvard University on edX.

When something is offered for free, we're always looking out for the catch. Are we going to need to sign up for something? Will we need to pay full price after the promotional period? Or is the whole thing just a scam?

We're suspicious of anything that's "free," and you should be too. But every now and then there is a genuine opportunity to take an online course without spending anything. And even better, these online courses are delivered by famous educational institutions like Harvard University.

You can take free online courses from Harvard University on topics like Python, artificial intelligence, and cybersecurity. All of these high-quality courses can be found on edX.

We have checked out everything on offer from edX and lined up the best free online courses from Harvard University this month:

• Ancient Masterpieces of World Literature

• Applications of TinyML

• Building Personal Resilience: Managing Anxiety and Mental Health

• CS50's Computer Science for Business Professionals

• CS50's Computer Science for Lawyers

• CS50's Introduction to Artificial Intelligence with Python

• CS50's Introduction to Computer Science

• CS50's Introduction to Cybersecurity

• CS50's Introduction to Game Development

• CS50's Introduction to Programming with Python

• CS50's Introduction to Programming with R

• CS50's Introduction to Programming with Scratch

• CS50's Understanding Technology

• CS50's Web Programming with Python and JavaScript

• Data Science: Capstone

• Data Science: Inference and Modelling

• Data Science: Machine Learning

• Data Science: Productivity Tools

• Data Science: R Basics

• Data Science: Visualization

• Deploying TinyML

• Energy and Thermodynamics

• Entrepreneurship in Emerging Economies

• Exercising Leadership: Foundational Principles

• Fat Chance: Probability from the Ground Up

• Fundamentals of Neuroscience Part 1

• Fundamentals of TinyML

• High-Dimensional Data Analysis

• Humanitarian Response to Conflict and Disaster

• Introduction to Data Science with Python

• Introduction to Digital Humanities

• Justice

• Leadership: Creating Public Value

• Leaders of Learning

• Machine Learning and AI with Python

• Managing Happiness

• Masterpieces of World Literature

• MLOps for Scaling TinyML

• Modern Masterpieces of World Literature

• Remote Work Revolution for Everyone

• Rhetoric: The Art of Persuasive Writing and Public Speaking

• Shakespeare's Life and Work

• Statistics and R

• Super-Earths and Life

• The Health Effects of Climate Change

• The Path to Happiness: What Chinese Philosophy Teaches us about the Good Life

• Using Python for Research

These free online courses do not come with a verified certificate of completion, but that's the only catch. You can still enroll and start learning at your own pace.

Find the best free online courses from Harvard University with edX.