Hello from CKEditor 5!
: License keys are often tied to a specific distribution channel. For example, a key generated for use with the CKEditor Cloud CDN may not work if you're trying to use it with a self-hosted npm or ZIP installation.
The key is mistyped, expired, or generated for a different product. Fix: ckeditor 5 license key
: Required if your project is not open-source. Options include a Free commercial plan
For production license keys, the Customer Portal offers an optional feature. This security enhancement allows you to restrict editor usage to specific domains or IP addresses, preventing unauthorized use of your license key. Hello from CKEditor 5
| Attribute | Details | |-----------|---------| | | 14 days | | Features | Access to all premium features and add-ons | | Intended use | Evaluation purposes only | | Production use | ❌ Not allowed | | Editor loads | Does not consume editor loads |
As a developer integrating CKEditor 5, you've probably just encountered an error you've never seen before. That's because starting with version 44.0.0, CKEditor 5 made a significant change: to activate premium features and even to properly configure the open-source version. The key is mistyped, expired, or generated for
Your current license keys remain functional even after recreation, ensuring you have time to migrate without disruption. You'll always see the two most recent keys of each type.
Starting from version 44.0.0, the licenseKey property is mandatory. If you've omitted it entirely, this error appears.