CK-12 Foundation
| Founded | 2007 | 
|---|---|
| Founders | Neeru Khosla and Murugan Pal | 
| Focus | Education | 
| Location | |
Area served   | Global | 
| Method | Donations and Grants | 
Key people  | Neeru Khosla, executive director Murugan Pal, President Miral Shah, CTO  | 
| Website | https://www.ck12.org | 
| Headquarters location | |
The CK-12 Foundation is a California-based non-profit organization which aims to increase access to low-cost K-12 education in the United States and abroad. CK-12 provides free and customizable K-12 open educational resources aligned to state curriculum standards. As of 2022, the foundation's tools were used by over 200,000,000 students worldwide.
CK-12 was set up to support K-12 Science, Technology, Engineering, and Math (STEM) education. It first produced content via a web-based platform called "FlexBook."