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  1. CKEditor Ecosystem Help Center
  2. FAQ
  3. Licensing FAQ

Licensing FAQ

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  • Under which licenses do CKEditor 4 and CKEditor 5 come?
  • What am I entitled to while on active subscription?
  • What are monthly active users?
  • What happens if I exceed my monthly active users allowance?
  • What is the minimum length of subscription-based license agreements?
  • Are there commercial distributions of CKEditor 4 and CKEditor 5?
  • Can I modify the source code of CKEditor 4 and CKEditor 5?
  • What are the Open Source requirements when using CKEditor 4 and CKEditor 5?
  • Do I have to include additional terms or notices in order to use the Open Source license?
  • Can I have an Open Source version of CKFinder?
  • Can I include CKEditor 4 and CKEditor 5 in a commercial environment?
  • Where are the original CKEditor 4 and CKEditor 5 copyright notices located?

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