Khan Academy
7.7/10Best genuinely-free online courses, 501(c)(3) non-profit education
Donor-supported 501(c)(3) non-profit education covering K-12 plus early-college math, science, and humanities forever.
| Plan | Monthly | What you get |
|---|---|---|
| Free | Free | Genuinely free 501(c)(3) non-profit education for K-12 plus early college; donor-supported with no paid tier ever |
Khan Academy is the right pick when the goal is durably free education with no upgrade path to defend against. Founded in Mountain View in 2008 by Salman Khan, the platform is a registered 501(c)(3) non-profit that publishes the entire catalog free without a paid tier anywhere on the product.
The wedge for free-tier readers is durability. Where Coursera audit and Udemy free are carve-outs on a paid product that may shrink as vendor priorities shift, Khan Academy is structurally free because the non-profit charter requires it. The catalog covers math through differential calculus, science across biology and chemistry and physics, humanities, and economics. The trade-off is scope. Khan Academy targets foundational subjects through early college, not professional certifications. For an adult reviewing calculus before a graduate program or a parent supplementing K-12, this is the cleanest free path; for a career-change credential, free-audit on Coursera fits better.
Pros
- Genuinely free forever as a registered 501(c)(3) non-profit; no paid tier anywhere
- K-12 math, science, humanities plus early-college calculus and linear algebra
- Khan Academy Kids separate iOS and Android app for learners ages two to eight
- AI tutor Khanmigo launched 2023 for paid donors while the core platform stays free
- Founded 2008 by Salman Khan; the largest free non-profit education platform
Cons
- K-12 plus early-college foundational subjects only; no professional certifications or career-change credentials
- No creative classes, no tech-stack-specific training, no celebrity-instructor catalog
Best for: Adult learners reviewing math or science foundations before a degree program, parents supplementing K-12, and anyone wanting durably free learning.
- Catalog
- 10
- Updates
- 8
- Learn
- 9
- Value
- 10
- Support
- 6