If you are building a closed-source application or using premium features (like the AI Assistant or Import from Word), a commercial license and key are mandatory .
Ensure your license key covers the domain where your application is hosted. Some keys are restricted to specific environments.
For enterprise-level deployments with high traffic. Summary Table: Feature Access Open Source (GPL) Commercial License Core Editing ✅ Included ✅ Included ✅ Included ✅ Included Real-time Collab AI Assistant Premium Support ckeditor 5 license key hot
CKSource offers a 30-day free trial that provides a temporary "hot" license key to test all premium features. 4. How to Configure Your License Key
If you have obtained a key, you must add it to your editor configuration. Here is a basic implementation example: javascript If you are building a closed-source application or
Sign up for a free trial or purchase a plan.
To avoid security risks associated with "cracked" or "nulled" keys found on shady forums, always get your key directly from the source: For enterprise-level deployments with high traffic
Ensure your CKEditor version matches the license tier you purchased. Using a v4 key on a v5 installation will not work. 6. Where to Get a Valid Key