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Khan Academy
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Khan Academy

Foundational STEM & Free Education

About the platform

Non-profit providing free, world-class education for anyone, anywhere in STEM and standardized test prep.

Khan Academy is a non-profit founded by Sal Khan in 2008 with the mission of providing a free, world-class education for anyone, anywhere.

What it offers

  • Video lessons and interactive practice in math, from basics to calculus.
  • Science: physics, chemistry and biology.
  • Economics, history and computer science.
  • Test prep such as the SAT, with progress tracking.

Certificates and cost

All content is free and needs no subscription, but the platform does not issue accredited certificates; it is built for understanding and practice.

Who it suits

School and university students who want to strengthen the basics, especially math, before admission tests or studying abroad.

Always check prices and certificate terms on the official website, as they can change.