: This method is officially documented for open-source setups . 2. For Commercial or Trial Use

CKEditor 5 was the tiny but crucial component that powered the company’s new content platform. The editor’s premium features—collaboration cursors, real-time track changes, advanced document export—were gated behind a commercial license key. The engineering team had been debating whether to build around the open-source core or buy the full suite; budgets and timelines had forced compromises. Tomás had assumed the decision would come from legal.

Includes commercial license, single cloud region, and professional support.

If you attempt to use a premium plugin without a valid license key, the editor will throw a licensing error and the feature will not work.

This article reflects CKEditor 5 licensing as of version 44.0.0 and later. For the most current information, refer to the official CKEditor 5 documentation and the Customer Portal .

import ClassicEditor from 'ckeditor5'; import 'ckeditor5/ckeditor5.css';

Multiple users editing simultaneously.

Show a notification or placeholder indicating that a license is required. Conclusion

If you are loading CKEditor 5 from a Content Delivery Network (CDN) or using premium plugins that communicate with the CKEditor cloud services, you may need to update your .

You only need to add the license key once in your configuration, regardless of how many premium features you intend to use.

Have questions about the licensing model or key implementation? Drop them in the comments below!

The key takeaways:

: Simultaneous co-editing, comments, and track changes.