Khan Academy is a free online educational platform that offers a wide range of courses and resources for students of all ages. Founded by Sal Khan in 2008, it provides instructional videos, practice exercises, and a personalized learning dashboard to help learners progress at their own pace. Subjects include math, science, economics, and humanities. The platform is designed to support both students and teachers, making it a valuable tool for classroom learning and independent study. With its extensive library of content, Khan Academy aims to democratize education and make high-quality learning accessible to everyone, regardless of their background.