- CKEditor 4 is distributed under three copyleft Open Source license options: GPL, LGPL, MPL.
- CKEditor 5 is distributed under a GPL 2+ copyleft Open Source license (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).
If you are working on a SaaS project, creating a commercial application or just need more flexibility, you can purchase a commercial license that allows special license terms and a dedicated support.
As for commercial licensing, CKSource grants both term-based and perpetual licenses depending on the customer software-specific usage scenario and needs.
Please visit the pricing page of CKEditor for details.