Free nonprofit platform covering every subject
Introduction
Khan Academy is the benchmark of nonprofit free education: Salman Khan started by tutoring his cousin in math and built full-subject coverage from K-12 through college plus coding and finance. The mission 'free world-class education for anyone' with zero ads and zero fees — the ceiling of education philanthropy.
Key Features
- Free full-subject curriculum
- Exercises with mastery tracking
- Khan Academy Kids
- Multilingual localization
- Nonprofit, ad-free
Pros
- Completely free, no strings
- Complete subject coverage
Cons
- Fewer cutting-edge AI courses
Pricing
Completely free.（See official site for current pricing）
FAQ
Good for adult learners?
Yes — excellent for math and finance refreshers.
Certificates?
No formal certificates; completion badges only.
Complete Chinese version?
Core subjects are localized.
Related Sites
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