CKEditorError: license-key-missing
Premium features stop working. The editor will fall back to a read-only mode or display a licensing notification depending on the version. Your users will see an error.
| Attribute | Details | |-----------|---------| | | Tied to your subscription period | | Features | Access to your subscription features | | Intended use | Development environments (local work, CI, E2E tests) | | Production use | ❌ Not allowed | | Editor loads | Does not consume editor loads | | Domain restrictions | Limited to localhost, *.test , *.localhost , *.local , and private IP ranges | ckeditor 5 license key
You can use CKEditor 5 for free if your project is also open-source under a compatible license. However, this version typically lacks premium features and professional support.
It enables advanced plugins like Real-Time Collaboration, AI Assistant, and Export to Word/PDF. It ensures compliance with legal software licensing terms. 2. CKEditor 5 License Types and Pricing | Attribute | Details | |-----------|---------| | |
Add licenseKey: 'gpl' for open-source projects, or add your paid string. Error: "Invalid license key"
: For active end-user environments. Depending on your plan, this may be based on usage (editor loads). : For open-source projects, you can use the string licenseKey It ensures compliance with legal software licensing terms
To activate your commercial features, add the licenseKey configuration property to your editor initialization script. JavaScript (Vanilla) Example javascript
If you are ready to unlock these features, get started with a free trial and see how premium features can transform your application.
| Deployment Size | Estimated Annual Cost | |----------------|----------------------| | Small (single app, <10K users) | $5,000–$25,000 | | Mid-market (multiple apps, 10K–100K users) | $25,000–$100,000 | | Enterprise (platform-wide, >100K users) | $100,000–$500,000+ |