License and legal

License and legal

The following legal notices apply to CKEditor 5 Builds and all software from CKEditor 5 Ecosystem included with it.

Licensed under the terms of GNU General Public License Version 2 or later.

Free for Open Source

If you are running a project with an OSS license incompatible with GPL, please contact us and we will be happy to support it with a free CKEditor 5 license.

Sources of intellectual property included in CKEditor

Where not otherwise indicated, all CKEditor 5 Builds 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 Frederico Knabben. All other brand and product names are trademarks, registered trademarks or service marks of their respective holders.