Software License Agreement
Copyright (c) 2003-2022, CKSource Holding LTD. All rights reserved.
We are proud to be Open Source.
CKEditor 5
CKEditor 5 is licensed under the terms of GNU General Public License Version 2 or later.
If you are running an Open Source project with an OSS license incompatible with GPL please contact us and we will be happy to support your project with a CKEditor 5 license.
CKEditor 4
CKEditor 4 is licensed under the terms of any of the following licenses at your choice:
Sources of Intellectual Property Included in CKEditor
Where not otherwise indicated, all CKEditor content is authored by CKSource engineers and consists of CKSource-owned intellectual property. In some specific instances, CKEditor will incorporate work done by developers outside of CKSource with their express permission.
Trademarks
CKEditor is a trademark of CKSource Holding LTD. All other brand and product names are trademarks, registered trademarks or service marks of their respective holders.