Khan Academy review covering free courses, subjects, the Khanmigo AI tutor, funding model, and how it compares to Coursera and Duolingo.
Khan Academy is a nonprofit online education platform founded by Sal Khan, with origins tracing back to 2004 when he began tutoring a cousin remotely using online tools, and formally incorporated as a 501(c)(3) nonprofit in 2008 after Khan left his hedge fund job to pursue it full time. Headquartered in Mountain View, California, the organization is funded through philanthropic donations and major grants rather than user fees, keeping its educational content free for everyone.
Early funding from Google and the Bill and Melinda Gates Foundation in 2010 allowed Khan Academy to grow from a one-person video library into a full nonprofit organization. It now reaches tens of millions of learners globally each year, delivering thousands of lessons across math, science, literacy and test preparation.
Khan Academy's platform offers more than 7,000 lessons and 400+ supplementary books spanning preK-2 literacy and math, grades 3 through college-level math and science, financial literacy, and standardized test prep including SAT courses. Content is delivered through short instructional videos combined with practice exercises and mastery-based progress tracking that adapts to each learner's pace.
Its newest major feature is Khanmigo, an AI-powered tutor built on large language model technology that provides Socratic-style personalized tutoring for students and lesson-planning/grading support for teachers. Khanmigo usage grew roughly seventeenfold between the 2024-25 and 2025-26 school years, reflecting rapid adoption as Khan Academy integrates AI more deeply into its offering.
Khan Academy's core educational content is entirely free to use for all learners, teachers and parents, reflecting its nonprofit mission and funding model based on donations and grants rather than subscriptions or course fees.
The organization sustains itself through philanthropic support from major donors and foundations, along with district partnerships for institutional adoption, rather than by charging end users, which distinguishes it from for-profit online education platforms that rely on paid subscriptions.
Yes, Khan Academy's core educational content is entirely free for all users, funded through donations and grants as a nonprofit organization.
Khan Academy was founded by Sal Khan, who began tutoring relatives online in 2004 and formally incorporated the organization as a nonprofit in 2008.
Khanmigo is Khan Academy's AI-powered tutor that provides personalized, Socratic-style tutoring for students and planning/grading assistance for teachers.
Khan Academy covers preK-2 literacy and math, grades 3 through college-level math and science, financial literacy, and standardized test prep including SAT courses.
Khan Academy reported 189.6 million total registered users and 62.4 million international learners, educators and parents reached in the SY24-25 school year.
Khan Academy is funded primarily through philanthropic donations and grants from foundations and individuals, including early support from Google and the Bill and Melinda Gates Foundation.