If you resolved to further your education in 2018, there are plenty of opportunities to do so without leaving home. Free college courses are abundant online, and the convenience doesn't necessarily mean you have to compromise on quality. For the best, tuition-free education the internet has to offer, check out these free Ivy League classes compiled by Quartz.

The eight Ivy League schools—Brown, Columbia, Cornell, Dartmouth, Harvard, Princeton, the University of Pennsylvania, and Yale—offer about 396 free, active online courses between them. While many cover conventional subjects, like marketing, computer science, and Greek mythology, there are plenty of unique classes, including options like "Bitcoin and Cryptocurrency Technologies" and "The Ethics of Memory."

Many of the courses are self-paced and offer certificates for a fee. That certification may cost between $50 and $100—meaning your class won't technically be free, but it will still be a lot cheaper than attending an in-person lecture at Harvard.

Here are 25 notable free classes being offered by Ivy League universities this year.

1. "Bitcoin and Cryptocurrency Technologies" // Princeton University
2. "Artificial Intelligence (AI)" // Columbia University
3. "Animation and CGI Motion" // Columbia University
4. "The Global Financial Crisis" // Yale University
5. "Crowdfunding" // University of Pennsylvania
6. "Viral Marketing and How to Craft Contagious Content" // University of Pennsylvania
7. "Moralities of Everyday Life" // Yale University
8. "The Ancient Greek Hero" // Harvard University
9. "Visualizing Japan (1850s-1930s): Westernization, Protest, Modernity" // Harvard University
10. "American Capitalism: A History" // Cornell University
11. "Science & Cooking: From Haute Cuisine to Soft Matter Science (Part 1)" // Harvard University
12. "Power and Responsibility: Doing Philosophy with Superheroes" // Harvard University
13. "Super-Earths and Life" // Harvard University
14. "Women Making History: Ten Objects, Many Stories" // Harvard University
15. "Modern Masterpieces of World Literature" // Harvard University
16. "The Ethics of Memory" // Brown University
17. "Buddhism and Modern Psychology" // Princeton University
18. "Designing Cities" // University of Pennsylvania
19. "America’s Written Constitution" // Yale University
20. "Lessons from Ebola: Preventing the Next Pandemic" // Harvard University
21. "The History of Medieval Medicine Through Jewish Manuscripts" // University of Pennsylvania
22. "The Science of Well-Being" // Yale University
23. "Everyday Parenting: The ABCs of Child Rearing" // Yale University
24. "Introduction to Italian Opera" // Dartmouth University
25. "Music and Social Action" // Yale University

You can find more free online offerings from the Ivys and other top schools at Class Central.

[h/t Quartz]