Insider Pickswrites about products and services to help you navigate when shopping online. Insider Inc. receives a commission from our affiliate partners when you buy through our links, but our reporting and recommendations are always independent and objective.Online learning sitesCoursera and edXallow you to audit classes from top universities for free.For additional fees, you can gain access to course certificates, assignments, tests, and even receive a final grade.Course topics vary widelyfrom business management to social justice, food science to structural engineeringthere's something for everyone.Every year, US News & Reports releases its ranking of the top universities in the country. These schools are renowned for their rigorous academic and research programs, professors and faculty members with resumes packed with accomplishments, and beautiful campusesbut they're not easy to get into, nor are they affordable to attend.Thankfully, online learning sites like Coursera and edX are helping to increaseaccess to high-quality education for everyone. Their free and low-priced courses are taught by instructors from the best universities and academic institutions around the world, allowing anyone to advance their education, professional goals, or personal interests.Both Coursera and edX allow you to audit any course for free. You get access to course materials and follow along with the class as it progresses. For an additional $40 to $160 (depending on the course) on edX, you receive a verified certificate that you can include in your resume or on your LinkedIn profile. Meanwhile, expanded access to Coursera courses includes assignments, tests, and a final grade, and costs $29 to $99 per course.CourseraandedXalso each offer in-depth specializationsthat require some more commitment and help learners develop the professional skills that are in demand in their industries today.A decade ago, you wouldn't have been able to easily take classes from these top-ranked schools. Now, you can. We rounded up the Coursera and edX courses from each of the schools so you can skip directly to your favorite university, or browse all that each has to offer.Take online classes from the following top 14 universities in the country.1: Princeton UniversityBrowse all courses from Princeton University at Coursera hereBitcoin and Cryptocurrency Technologies, 4 weeks, available at CourseraEffective Altruism, 15 hours, available at CourseraComputer Architecture, 5 weeks, available at CourseraImagining Other Earths, 24 weeks, available at CourseraBrowse all courses from Princeton University at edX hereMaking Government Work in Hard Places, 8 weeks, available at edXGlobal History of Capitalism, 6 weeks, available at edXThe Art of Structural Engineering: Bridges, 8 weeks, available at edX2: Harvard UniversityBrowse all courses from Harvard University at edX hereCS50's Computer Science for Business Professionals, 6 weeks, available at edXScience & Cooking: From Haute Cuisine to Soft Matter Science, 6 weeks, available at edXMasterpieces of World Literature, 12 weeks, available at edXThe Opioid Crisis in America, 7 weeks, available at edXData Science: R Basics, 4 weeks, available at edXContract Law: From Trust to Promise to Contract, 8 weeks, available at edX3: University of ChicagoBrowse all courses from University of Chicago at Coursera hereCritical Issues in Urban Education, 11 weeks, available at CourseraUnderstanding the Brain: The Neurobiology of Everyday Life, 10 weeks, available at CourseraInternet Giants: The Law and Economics of Media Platforms, 9 weeks, available at CourseraBrowse all courses from University of Chicago at edX hereModeling Climate Change, 8 weeks, available at edXCritical Issues in Urban Education, 12 weeks, available at edXSee the rest of the story at Business Insider Click here to read full news..