Khan Academy

Khan Academy is a non-profit with the mission of providing a free, world-class education for anyone, anywhere. All our resources are available at no cost. For that reason, this help center is mostly powered by volunteers.




Coursera is a social entrepreneurship company that partners with the top universities in the world to offer courses online for anyone to take. Most courses can be taken for free and if you would like a certificate you need to pay a little bit extra.  Coursera envisions a future where the top universities are educating not only thousands of students, but millions. 

Through this, Coursera hopes to give everyone access to the world-class education that has so far been available only to a select few. Coursera wants to empower people with education that will improve their lives, the lives of their families, and the communities they live in.




Founded by Harvard University and MIT in 2012, edX is an online learning destination, offering high-quality courses from the world’s best universities and institutions to learners everywhere.

With more than 90 global partners, EDX can count the world’s leading universities, nonprofits, and institutions as members. EdX university members top the QS World University Rankings® with the founders receiving the top honors, and edX partner institutions ranking highly on the full list.




One of the most popular and well-known tools for learning a language online is Duolingo. Duolingo is completely free.

Duolingo is a great example of a straightforward language app. It’s really simple to use. You set up a profile, choose your target language, set your weekly goals (only if you’re brave enough) and off you go!

Each course in Duolingo is made up of modules (the circles in the screenshot below) which are grouped to form skills.




Udemy.com is an online learning platform. It is aimed at professional adults who want to add new skills to their resumes. Unlike academic MOOC programs driven by traditional collegiate coursework, Udemy provides a platform for experts of any kind to create courses which can be offered to the public, either at no charge or for a tuition fee. Udemy provides tools which enable users to create a course, promote it and earn money from student tuition charges.

No Udemy courses are currently credentialed for college credit; students take courses largely as a means of improving job-related skills. Some courses generate credit toward technical certification. Udemy has made a special effort to attract corporate trainers seeking to create coursework for employees of their company.