You can modify, integrate and use the Open Source CKEditor 4 and the Open Source CKEditor 5 in your commercial websites and products for free as long as our source code and your modifications remain open and accessible to others under the same Open Source license terms.
- CKEditor 4 is licensed under the terms of any of the following licenses of your choice: GPL, LGPL, and MPL.
- CKEditor 5 is licensed under the terms of GPL 2+.
If you need a license that allows special license terms and dedicated support, visit the CKEditor pricing page.
In case of any questions related to the above, please contact us.